To this day I deeply miss the ability to, when bored, wander down the hall and see whose door was open and what was going on, or to leave my own door open and get drawn into whatever interesting thing arose on the hallway. But aside from aging out of college myself, far less people are even getting access to that in the first place. The entire "dorm" model is dying at colleges, as the residential buildings, though still colloquially called dorms, are really just apartment buildings, except more expensive and they kick you out for a while every couple months.