> One rationale that I heard that seems reasonable at face value is since you can't give back your education, that's the justification for not being able to declare bankruptcy.
It goes a little further than that. It doesn't really matter that you can't give back the education. It's that the loan is entirely unsecured - there's no collateral, but also the people who get student loans typically don't have any assets. So it would cost nothing to take out student loans, study, and then declare bankruptcy.
So I'll just leave an answer here. Credit cards, when they are issued to college-aged kids with little to no income or assets, are typically issued with very small credit lines (i.e. we're talking much smaller amounts than students loans) and/or require a co-signer, like a parent with an established credit history.
It goes a little further than that. It doesn't really matter that you can't give back the education. It's that the loan is entirely unsecured - there's no collateral, but also the people who get student loans typically don't have any assets. So it would cost nothing to take out student loans, study, and then declare bankruptcy.