That is exactly my point ! Its a self-selection bias rather than anything. If a student is smart enough - he shouldn't be forced to shell out 5-6 years worth o

That is exactly my point ! Its a self-selection bias rather than anything. If a student is smart enough - he shouldn't be forced to shell out 5-6 years worth of his expected earning upfront to maybe add an exponential expected future productivity. Its a terrible deal for students - and society.