Is it too far-fetched to conceive that there might only be sub-optimal decisions to choose from for some people? Not saying that this is strictly the case for a

Is it too far-fetched to conceive that there might only be sub-optimal decisions to choose from for some people? Not saying that this is strictly the case for all people, but I certainly can imagine that there are some for whom "parental support, scholarships, grants and subsidized federal loans" are hard to come by. In that case, is it still completely the fault of the individual? What do you suggest that these people do instead of taking out -- what a financially-aware person knows to be -- a bad loan?