How do y'all play Sims 4

Mainly I play with only adult sims, aging off, no family stuff. Just see them make careers, make friends, do crazy stuff though it's sadly still a bit disappointing in the crazy department. 

I miss sims really doing surprising stuff by themselves. Like in Sims 3 I had this guy who kept hitting on his evil house mate. And always she'd slap him, beat him up or do something similar in response. Yet he kept trying. One time he even flirted with her right after she gave him a beating. 

He never made a move on the good girl who also lived in the same house. Not the two other guys living in that house either. 

I miss sims like that, who really have personality and do entertaining things on their own, that seemingly no other sim would do. 

I do a lot of challenges, which tend to turn into legacy plays because I like to build families and then see what their kids looks like and move them out to create their own families. I do play rotationally, but I stay with one family for a long time, until the goals I set out for them are done, then move on. I keep my other played families not aging until I can get to them, but I leave the rest of the world aging and with neighborhood stories on so things are constantly changing around my active Sim. I also embrace randomness wherever I can. I randomize names, traits, clothing, roll dice for aspirations or some other decisions that don't have their own random button. I like to be surprised in my game. I try not to plan things out too strictly so there's room for the unexpected. 

When a new pack comes out, I tend to create goals for my Sims based on new features of the pack so I can explore it thoroughly. That might be new traits or aspirations, new jobs, but also just new side quests like a collection or a new recipe etc. or trying out new game play objects. It varies, depending on what the new DLC offers. 

In my current game I'm still working through Life and Death stuff, but have started a couple small businesses to begin exploring that pack as well. 

BUILDING

With the occasional making of a cas family for the houses I make

I play rotationally, but all within the same family. I started with a Sim modeled after myself and then branched out through the generations. Each member of the family has four children each (when space allows), so the family gets pretty big. I don't really control my Sims too much and prefer to let them wander around and do as they please. I do control them for things they won't do things autonomously, such as getting married, having children, repairing items, gardening, etc. For the most part, though, I just like to watch them. A lot of people who play the Sims 4 get bored with the repetition of the game, but I rather like it. It's calming to know exactly what's going to happen (in most cases), as real life is often chaotic.

Never seriously. For me it's all about creating strange sims and having them do strange things

I play challenges like the decades challenge or legacy challenge. 

I have my Sims learn and skill up as much as possible while creating and collecting everything possible on the side. I like to find all the nooks and crannies of environments. When the game is being a pain and I cannot progress on a goal, however, I'll find out other things via build mode. 

While the old builds of game are not "designer" quality, there are fun little things I've found hidden. One of the builders had a tendency to paint their buildings with two different wallpapers that are the same color. Usually it was a stucco with something else. The two builds that come to mind at the moment are the Von Haunt Estate from Get Together and the Deadgrass Discoveries museum in Brindleton Bay. There is also the infamous builder that liked to stick toilet paper rolls behind toilet seats. Bob Pancakes' bathroom and I think it was the one I consider to be Alice Kim-Spencer-Lewis' bathroom has those calling cards. If any of you have Strangerville and Spooky Stuff, have any of you figured out how and where the Dreamweavers Way house has that Spooky Stuff flooring? It took me quite a long time!

I'm on generation #12, The heir, the youngest child, is required to complete the scouting badges, go to university, get married and have many children. My generation #2 won the lottery (yes, you can actually win), so the heir inherits the fortune. One heir had 20 children (she got married twice). One heir had only 8 children, depends on my mood. My heirs have twins and triplets. It can get chaotic taking care of so many children, but I enjoy it. I take a lot of pictures, all the kids eventually move out, I give them spouses in CAS and they get pregnant. I have two cemeteries full of urns and pictures. Yeah, I'm too invested. 😆 

I play with 175 Sims. I remove jealousy and make all Sims love each other, but only lesbians

I create my own Sim families and go from there. I also enjoy building, so I generally build homes for said families and move them in. I also use mods. MCCC is one of my favorites. It allows me to cheat up skills for this newly created family, because it bugs me that a set of parents with maybe 5-6 kids have no skills whatsoever.  I'm also one to create possible mates for some of the kids.