Ask HN: You're a recent grad that's working full time on your startup. How? 17 years ago
Is this in the U.S.? If I were a school administrator and half my graduating students were moving back in with their parents after graduation, I would consider my school to be failing terribly. I would expect even a community college to be better than that.
Alternatively, by "top private" do you mean very expensive, so most of the students were independently wealthy and were getting degrees in things not intended/needed to provide jobs after graduation? I just can't fathom going to / sending my child to a school where that was normal.