The thing is, most college students these days don't actually have someone else paying the rent. They have their future selves paying the rent via student loans. There's a level of indirection, of insulation, yes, but ultimately they are not actually being supported off someone else's charity.
Actually, given the interest rates and contract conditions on student-loans these days, I'd argue students are blatantly exploited. But that's beside the point and even more political.
No that's actually the only point of #4. The whole context of this discussion is the difference between students and graduates. One thing that happens when you graduate is that it becomes a lot harder to recruit your "future self" to pay for your basic needs of today.
Actually, given the interest rates and contract conditions on student-loans these days, I'd argue students are blatantly exploited. But that's beside the point and even more political.