These numbers look to me a bit as if gov is paying anyway, but with the current model it gets the money back only (eventually) after the citizens education, and pushes a lot of people into debt.
All of that for essentially avoiding that one person might add a few $$$ to the pot that could benefit another...
I know US policy sees the self-responsibility of the individual completely differently, but having grown up in Austria and profited from top education that is _naturally_ free for everyone, all of this student debt stuff looks like madness to me.