There are a lot of ways of socializing the cost of education, doing it retroactively opens up a whole can of worms.
I may be a little salty because I took the community-college-into-university approach to save on costs and made some sacrifices to send every extra penny I earned towards paying down debt.
But I also realize that the country is going to be much worse off if we continue to punish people for spending more than they could afford on university.
But, honestly, I'm not a huge fan of logic lines that sound like, "We can't help everyone, so therefore we should help no one." We should absolutely strive to help everyone we can. And if there's still a population remaining afterwards which requires help, then we can talk about why they weren't helped before and figure out whether and how to reach them also.
> Making tuition free is nice...
I think it's funny that you have these two ideas so close together... The government owning most of the loans provides a very easy path to enabling free college retroactively: extinguish all the loans. The government doesn't have a profit incentive, so there's no reason that such a path should not be reasonable.