I'm rarely one to advocate for legislating solutions to problems but forcing schools be responsible for more of the communication with student/customer/debtor when it comes to loaning money, collecting payments and handling defaults would really cut down on the number of student loans that aren't paid back on schedule.

If the school is responsible for the overhead cost of that communication they will have a strong incentive to make their students capable of paying back their loans or accessing the various deferment/income based repayment options in order to avoid the cost of collections.

A work study student who hates their minimum wage job will be a lot more helpful to a debtor who received a payment due and is calling the 1-800 number on it because they are confused than some random person in a call center that's an Nth level subcontractor for some bank that owns the debt.

A work study student who hates their minimum wage job will be a infinity more helpful to a debtor who is in default and is calling the 1-800 number on it because they are confused than some random person in a call center who makes a commission based on how they handle the account in question.

If the school was responsible for the cost of communicating with the debtor a lot fewer loans would make it into default in the first place.