No, none of that will work. Great students taking majors with high earning potential can still declare bankruptcy the day they graduate and discharge the debt with few consequences.
But these things aren't a big deal for most 21 year olds. Certainly they are smaller considerations compared to paying back a high 5 or 6 figure debt.
If student loans became dischargeable through bankruptcy, I imagine that could put pressure on bankruptcy laws in undesirable ways (e.g., the current 7 year period might get extended to 20 years).