I think it is if we give people an option to default on student loans. There has to be a way to send a negative signal. Even something like a "one year out, one year in" option. i.e. If after your first year out of college you don't have a "decent job" then you may go back for a year of retraining no questions/bills so long as you're on campus. Costly for society? Sure, but much better than increased DOD spending.