How is this a bad thing though? Isn't an educated populace a good thing? Sure maybe their occupation may not utilize what they learned, but I don't see how that's problematic. I didn't use 50% of the course material I was required to take and I've been a professional for 6 years at this point. That material I don't use is still very valuable to me because it helps me understand reality better.
Because the person has a dead end job and has to pay 50k in student debt.
Student debt works on the basis people get high quality jobs after.