A huge part of the problem is for profit schools. The students on average borrow more while accounting for the majority of defaults.
They are predatory in nature, targeting minorities, low income, first generation college students, and ex-military. These are people that don’t have anyone to guide them. They get targeted by people pretending to have their best interest at heart, but all they care about is getting the loan signed.
The Obama admin was taking steps to kill the worst offenders, but Trump and Betsy Devos are doing their best to revive the industry.