You’re never stopping predatory businesses from being predatory.
There are many ways to get assistance with student loans. There’s FAFSA before you start, there are federally backed ones that can’t pump up the interest rates, there’s income based repayment plans (that can go as far as full deferment), and if for some reason someone made the mistake of not using any of that there’s still options for loan consolidation/refinancing to better rates when better rates are available. On top of all that, most loan providers will work with you. They want your money, not the hassle of selling your loan to a collections agency for a lower amount.
None of that eliminates predatory loan providers, or the targeting of unprepared 18 year olds, but the impact can be blunted.
Beyond all that, at some point, some amount of personal responsibility must be taken for one’s actions. None of us will always have the capacity to fully understand every choice we make, or the knowledge to make those decisions from a fully informed position, but we all have to make certain decisions in life anyway and live with the consequences. Not fair, but that’s life.