Last time, Dirk, Dustin, Lilith and Angela completed two years of college. It was boring for the most part and the twins only passed the semesters because Dustin need to do research with others.
Welcome to our first visit to university. I did a tour already and graduated a lot of teen townies. They were then given jobs and turned into downtownies or back to townies, just to get rid of them all. I doubt we will see them again, but it just progresses the town a bit.