At minimum we need to ban compound interest on these loans and, when a person has paid as much as the original principle on the loan, bankruptcy becomes legal.
There are new initiatives happening right now that allow for student loans to be more easily discharged in bk, and also new repayment plans starting up (linked to income) so that basically many loans will essentially turn into grants (written off after just 10 years of making small payments) for lower income borrowers.