Why do people think University is next ?

For me it is wishful thinking as college is just a part of all my families life in real life - so I often duplicate things in my game that is part of my real life. When my sims teens are nearing time to age up - well I tend to pull that save from my game - because I can't age them up to go to college. So I keep having to start over instead of letting them get on with their lives. That or only play sims who have no kids.