Let's now look at how employers go about hiring for higher skill jobs. Historically the most convenient way to make an initial cut is to screen for a college degree? Why? 1) Because it was a fairly good way of separating the intelligent and motivated from the rest of the pack and 2) Because there were things you learned in college that were valuable to the employer. I think it's safe to say that the second reason is no longer terribly important for many employers who aren't hiring technical degrees. Half of today's college graduates work at jobs that really don't require a college-level education, and there just aren't that many jobs where a knowledge of gender studies or art history is critical. So for a lot of people we're left with a college degree being a crude way for you to signal to an employer that you're a cut above half the population that doesn't have that degree.
That degree, that signal, is a very expensive one. Shouldn't there be a more efficient way to identify the types of people and the traits that are success factors for employers? Shouldn't there be some sort of testing mechanism whereby a person could say to an employer, "Look I have a A85 B92 C76 D47 E67 profile. Statistically that means I'm more likely to be a good performer for you than 80% of those people with college degrees who have lower scores on the attributes that are really important to you."
This would not stop everyone from getting a college education. There will still be lots of people of who will want that experience and that education for personal reasons. There will be a few jobs where a degree in art history or gender studies really is useful. But its utility as a mechanism to signal employers that you probably have some general intelligence and verbal skills could be supplanted by much better and cheaper predictive tools. Then let the universities that want your (or more likely the government's) $100,000 demonstrate that what they teach you in those four years really adds a lot to your market worth. Surely they are up to that challenge, aren't they?