"BethSims4;d-981685" wrote:
I need help when it comes to moving into the university dorms. When moving into them, you leave your house. If no one lives in your house, will someone move into them? And if you left something behind there, can you go back and get it?
I never had a single sim move into a dorm, but I think your old home will be sold if you leave no sim there.
What I'd do, is grabbing a random sim from CAS or a NPC, have that sim live in your house while you are away, when you graduate, move back in and kick out the "renter". A place keeper like that will prevent the house from being sold.