I think this is just endemic to colleges that don't have a plan for move out. I worked at a high school that was in a college town at the time this was filmed. We would take HS students dumpster diving during move out and get all kinds of stuff for proper donation. This wasn't some fancy school, just a state school. The college kids have exams, and then have a day or two to move out of dorms. It's too much to handle for a 19 yo with poor parents who are making the trip to the school to get them, possible missing work. So - they throw everything away.