Why is University so wanted? Can someone tell me why? I've never played it myself so I'm interested.

I loved the new career it came with. Plus it just gives more gameplay and build/buy items for your game. In Sims 2 it allowed you to be a young adult and some really fun things to do that was specific to that age group. In Sims 3 you could actually attend certain classes so it was fun to be able to do that. You could live in a dorm or apply for sorority/fraternity. Since playing Sims 4 I've actually been getting into generational play and having the opportunity to and then to school would be a great addition.