<p>I’ve heard/seen a few instances where a freshman has an upperclassman as a roommate. In fact, I think there is currently a thread about it. It happens, but it’s not that common.</p>
<p>BTW, not all schools have seperate dorms for each class. In fact, I know many people that lived in the same building from their freshman year to the time they moved/graduated. I also know that the classes are mixed up at the school I will be at this fall.</p>