It's town vs gown. You have separate areas and generally don't mingle. There is an age difference as well as a cultural and class difference. Much of Cambridge is gated off into colleges that a town person can't go unless escorted by someone connected to the university.
I was in the gown group, but even within this group there are additional degrees of stratification.
I was in the gown group, but even within this group there are additional degrees of stratification.