I just see them as playing pranks, goofing around, and not being "Serious"...meaning they are not involved in any activites, they are not focused on their studies, and they don't branch out to other people except themselves.

THey will be juniors now and this one girl is moving off campus in an apartment.  Do you think that's a bad choice vs the dorms?

I dont know, perhaps people are more mature...but from what I see, I see a lot of Immaturity, Lack of Concentration in Schoolwork, and also a failure to connect to a lot of friends outside their group.