I haven't read any studies done on the effect that this could have but if it was: 1) researched and 2) financially doable (results in net gain) then yes I would. If as a society we can find that doing X will improve the quality of life for all Americans for very little financial cost to us and only a long term positive impact, I don't see why anyone would say no to that?

> Many of the arguments you gave would also apply to credit cards, if not more (eg. 20+% APR compared to 7% for PLUS loans).

Just to note I have ~20k of loans @ 12.625% APR. 7% is what government backed loans are like. Not at all what a majority of private loans are like. Comparing credit card companies to private student loans is more fair.