I know that the purpose of college degree isn't just to make a lot of money, but if you can't make a lot of money, you shouldn't be able to take out 100k+ in loans that's legally protected from being removed in bankruptcy.
Of course, the real solution here should just be free public college + clampdowns on cost overruns so that it's practical to fund. Less money on nice dorms and endless administrators and whichever sports lose money. We used to have cheap college, and it's possible to get back there. Find what changed over the decades and cut back.