I agree completely, and that is my approach. But not everyone agrees. I would prefer to study history, philosophy and literature because I enjoy them, not for class. On the other hand, not everyone who would be interested in those things would do that without some place to make it official, so I still see a reason for schools that make it their focus to exist. However trying to improve the populace through underfunded, half baked, required courses taught by rote memorization specialists... I don't really agree with that since most students are just there for "job skills" anyway.

Many pieces of education, both the purely educational bits and the well-rounded bits, can come from experience and other sources. A degree often operates as a third-party certification that an individual has completed these tasks, and/or can stick with something for x years.