At Insty. One quote that he quotes:
...approximately 60 percent of the increase in the number of college graduates from 1992 to 2008 worked in jobs that the BLS considers relatively low skilled—occupations where many participants have only high school diplomas and often even less. Only a minority of the increment in our nation’s stock of college graduates is filling jobs historically considered as requiring a bachelor’s degree or more.
The error is in considering a BA as job training. It is not. It is a paper credential for sure, but I am not sure it makes sense to view it as an investment. America needs more gunsmiths and plumbers and software developers and small business creators, not more BAs in Anthropology.
A skilled gunsmith makes more money than any anthropologist - if income is what one wants. My gunsmith charges $170/hr for metal work, a bit less for wood work, and leads a fun, interesting, and adventurous life and gets to meet and befriend all sorts of fascinating people (like me). My local digital equipment repairman charges $175/hr. Scholarly types go to college for spoon-fed intellectual nurturing and development, but I am not convinced that those things "pay off" very much in a financial way - especially nowadays, when anybody can go to college. There are plenty of schools eager to accept a fat check from anybody who can sign their name.
"Twenty years of school and then they put you on the day shift..."
When people are curious and want to learn everything, they will do it with or without a BA, and they will never quit doing it until they die even if they never make a penny from it. Real learners never quit reading and learning and trying new thoughts. It's easy to identify real scholars - after they finish whatever formal schooling they do.