i shared something a little before "High School Years" came out my ideas of a Children based School 

but all these are rather outdated now so i'll create an updated version of it

School Gameplay Additions

• Science Fairs – kids bring projects, judges (teachers) score them, with ribbons/trophies as rewards.
• Class Elections – a chance to run for “class president,” with unique social perks if they win.
• Pen Pals Program – exchange letters or gifts with kids in other worlds (like postcards in Snowy Escape).
• Talent Shows – either at school or a community lot (singing, playing instruments, magic tricks, etc.).
• School Bus Interactions – small events happening while going to/returning from school (arguments, making friends, pranks).

After-School Fun

• Scouts Expansion – make it bigger, with levels for different ages and more activities.
• Coding/Robotics Club – kids can build small robots or code mini-games on the computer.
• Cooking Club – learn recipes (safe kid versions) and sell food at bake sales.
• Music Groups – form a “garage band” with toy instruments that evolve as skills grow.

Sports & Outdoors

• Mini Sports Teams – soccer, basketball, baseball, etc., with competitions and trophies.
• Bike Riding Skill – training wheels → normal bike → tricks.
• Skateboarding Skill – tied to your skate park idea, unlocks flips/grinds over time.
• Rock Climbing Walls (for kids) – indoor or park lot option.
• Treehouses Expanded – customizable treehouses with multiple activities inside (reading nook, fort, secret club).

Creative Play

• Imagination Club – kids dress up and “play pretend” in groups (knights, astronauts, superheroes).
• Puppet Shows Expanded – more plays and the option to write your own.
• Kid Theatre Lot – kids put on full performances that parents and other Sims can watch.
• Make Your Own Comics – sketch pads or computers where they can create stories.

Social/Personality Depth

• Best Friends Forever System – special friend status with unique perks.
• Rivalries – not full-on enemies, but little rival situations (competing grades, sports).
• Shy/Outgoing Traits – influences how quickly they make friends.
• Daydreaming Interaction – boosts creativity but lowers productivity.

New Worlds & Hidden Areas

• Secret Kid-Only Clubhouse World – with magical vibes, maybe treehouse villages.
• Campground Lot Type – campfires, tents, cabins, marshmallow roasting.
• British-Inspired World – cobblestone neighborhoods, countryside fields, small-town schools.
  
  

Basegame Enhancements

• • Hopscotch, Jump Rope, Tag – more playground activities.
  • Fort Building (Blankets & Pillows) – indoors activity like in The Sims 2.
  • Water Balloon Fights & Slip ’n Slides – for hot weather.
  • Pet Bonding – unique interactions with cats/dogs/hamsters (teach tricks, cuddle, chase).
  • More Toys – dolls, action figures, racing car tracks, toy trains.
  • Sleepovers – with activities like truth or dare, scary stories, prank calls.
  • Sims 2-Style Couches/Bed Jumping Competitions – but add “scolding” reactions from adults.

 

Realistic Side (School & Everyday Life)

• Elementary School Lot (active) → smaller than HS Years, more “slice of life,” with classes, recess, art/music/science lessons.
• After-School Programs → coding club, sports teams, art class, dance/ballet, and homework club.
• Child Aspirations Expansion →
  • Future Scientist (complete science projects, join science fairs)
  • Aspiring Athlete (win games, train at gym lot, join team)
  • Little Performer (theatre, puppet shows, music recitals)
• Kid Gyms & Play Lots → rock walls, mini climbing gyms, trampolines, monkey bars expansions.
• School Events → field trips (museums, nature parks, science centers), science fairs, school plays.

Fantasy Side (Imagination & Magic)

• Secret Kid-Only World → a hidden treehouse village or magical forest accessible only by kids (like a rabbit hole but explorable).
• Play Pretend Clubs → form groups with “themes” (pirates, superheroes, royalty) with costumes and roleplay actions.
• Dream Friend System → kids can have an imaginary friend (like in The Sims 3) that grows with them or fades as they age.
• Fantasy Aspirations →
  • Dreamer (explore secret worlds, daydream often, make up stories)
  • Adventurer (explore parks, find hidden treasures, climb, skate, build forts).
• Make-Believe Competitions → pretend “quests,” treasure hunts, and even kid-only rivalries.

 

 Shared Features (Blend Realism & Fantasy)

• Sleepovers & Slumber Parties → could be realistic but also include imagination play (telling “spooky stories” that spawn temporary effects).
• Carnival/Fairground Lot → kid rides, games, competitions → but also whimsical touches (cotton candy stands, prize stalls).
• Expanded Treehouses → start realistic, but kids can “pretend” they’re castles, spaceships, or portals to fantasy.
• Theatre Lot → realistic plays for school → but also fantasy “pretend productions” (fairy tale plays, superhero shows).

Basegame Update (Cross-Pack Friendly)

• Trampolines, hopscotch, tag, water balloon fights.
• Kids’ versions of real skills (photography, gardening, programming, cooking, music).
• Bed & couch jumping like in The Sims 2.
• Car toys, train sets, model kits, LEGO-style blocks.
• More traits → timid, outgoing, bully, dreamer, curious.
• Likes/Dislikes → sports, arts, pretend play, science.

 

  The Sims 4: Children’s World (Expansion Pack Concept)  

Core Theme

This pack brings depth, wonder, and purpose to the child life stage by blending realism (school, after-school activities, sports, social life) with imagination and fantasy (secret kid-only worlds, play pretend, magical creativity).

 New World: Willowshire

• Inspired by British small towns & countryside.
• Lots:
  • Elementary School (active lot)
  • Library for Kids
  • Kid-Friendly Gym
  • Theatre
  • Nature Park with playground & trails
  • Fairground/Carnival
• Neighborhoods include:
  • A cozy town square with playgrounds.
  • Countryside fields with nature trails.
  • A forested area hiding a secret kids-only world (treehouse village).

 

 New Gameplay Systems

Elementary School (Active)

• Follow your child Sims to school (like High School Years but lighter).
• Attend class (math, science, art, music).
• Recess: playground games, soccer, hopscotch, tag.
• Lunchroom socializing.
• Events: school plays, science fairs, field trips, sports day, talent shows.

After-School Activities

• Homework Club → group study, projects.
• Sports Teams → soccer, basketball, gymnastics, ballet.
• Art Club → painting, drawing, crafts.
• Music Club → play toy instruments, perform recitals.
• Scouts (expanded) → more badges, teamwork activities.
• Robotics & Coding Club → mini robots, computer projects.

Competitions

• Sports tournaments (soccer, basketball).
• Science fairs.
• Talent shows.
• Bake sales/lemonade stands.

 

Imagination & Fantasy

Secret Kids-Only World

• Hidden entrance through a treehouse or playground tunnel.
• Magical “imagination” filter (brighter colors, whimsical effects).
• Treehouse villages, fairy glades, fantasy playgrounds.
• Exclusive interactions: treasure hunts, roleplay adventures, secret club meetings.

Play Pretend Clubs

• Costumes & roleplay themes (knights, astronauts, pirates, superheroes, royalty).
• Group imaginative play with animations & buffs.

Imaginary Friend System (optional toggle in gameplay settings)

• Kids can create an imaginary companion.
• Can help with skills, play games, give emotional buffs.
• Fades as kids age OR evolves into a teen friend if maintained.

 

CAS Additions

• Traits (kids only):
  • Timid (shy, social awkwardness).
  • Bully (meaner interactions with peers).
  • Dreamer (enhanced imagination, faster creativity).
  • Insecure (needs more social reassurance).
  • Curious (faster at learning skills, especially science/art).
• Aspirations:
  • Future Scientist → excel in projects, science fair.
  • Aspiring Athlete → join sports clubs, win tournaments.
  • Little Performer → theatre plays, recitals.
  • Dreamer Adventurer → secret world exploration, pretend play.
• Clothing & Accessories:
  • School uniforms (British-inspired, customizable).
  • Sports outfits (soccer, ballet, gymnastics, basketball).
  • Costumes (pirate, superhero, knight, princess, animal onesies).
  • Casual play clothes (overalls, sneakers, graphic tees).
  • More unique hairstyles just for kids.

 

Build/Buy Additions

• Playground equipment: trampolines, hopscotch, slides, climbing walls, mini skate ramps.
• Treehouse (customizable interiors).
• Kid-only gym equipment.
• Puppet theatre & mini theatre stage.
• Toy ovens, car tracks, racing sets, dollhouses, LEGO-like blocks.
• Bake sale/lemonaid stands.
• Carnival booths (cotton candy, prize stalls, rides).

 

Base Game Update (Free with Patch)

• New interactions: tag, jump rope, pillow forts, water balloon fights.
• Kids playing instruments (violin, piano, drums).
• Expanded skills: art, programming, gardening, photography, science, dancing.
• Bed & couch jumping returns.
• Likes/Dislikes for kids (sports, imagination, arts, science, play pretend).

 

Pack Pillars

1. Grow & Learn → school, after-school activities, new skills, aspirations.
2. Play & Pretend → roleplay, costumes, secret world, imagination play.
3. Express Yourself → new CAS traits, hair, outfits, and creative tools.
4. Explore Together → field trips, fairs, competitions, sports, and magical adventures.

 

The Sims 4: Children’s World — Key Features

Go to School

• Follow your Sims to an active elementary school.
• Join classes in science, art, music, and more.
• Enjoy recess with new playground activities.
• Take part in school events: science fairs, field trips, talent shows, and plays.

 

After-School Fun

• Sign up for sports teams: soccer, basketball, gymnastics, ballet.
• Join clubs like Homework Helpers, Robotics, Scouts, or Art Club.
• Compete in tournaments and bake sales to earn prizes.

 

Play Pretend

• Create your own pretend play clubs with costumes and roleplay adventures.
• Unlock a secret kid-only world filled with treehouses, magical forests, and treasure hunts.
• Bring back imaginary friends — companions only kids can see!✅

Community Adventures

• Explore new lots: theatre, library, fairground, kids’ gym, and nature park.
• Host sleepovers and slumber parties with pillow forts and late-night fun.
• Sell lemonade, perform in plays, or ride the fairground rides!

Express Yourself

• New child aspirations: Future Scientist, Aspiring Athlete, Little Performer, Dreamer Adventurer.
• New traits: Timid, Bully, Dreamer, Curious, Insecure.
• Tons of new CAS items: school uniforms, costumes, play clothes, and unique hairstyles.
• Customize treehouses, playhouses, and pretend spaces.

 

Free Basegame Update

• New activities: trampolines, hopscotch, tag, jump rope, couch/bed jumping.
• Expanded skills for kids: art, music, programming, gardening, photography, science, dance.
• Likes & Dislikes for kids: sports, play pretend, imagination, science.
• More toys: car tracks, dollhouses, LEGO-style blocks, racing sets.

Pack Pillars: Grow. Play. Imagine.

and the reasons why i came up with the refresh version from an outdated one is because of the most recent reveal trailer from "Adventure Awaits" 

update: i made a better version of this by using ChatGPT so this way it won't sounds like i've copied it or something

an another update: woah, how is this related to these fanmade packs?

the closest one i can think of is the fashion one but again it's not even close to the children based pack idea (none of them infact)