college
College is the place where you get to realise that how and what are the things that you lack in. It can be academic or any other skill for example if you lack in good communication and humour you'll be left behind from the rest group.
Also when you start to brake your outer crust you can start to feel something in you and thus you start for journey to reach your ''potential version of you".
While college days you meet different type of people with various point of views, and that's when group gets divided mostly people with same iq or say same level of thinking pattern gets in one group, Vice versa.