A bit about school from an excellent short essay by Jonathan Harris:
The class was a crash course in things that are usually picked up slowly and by accident, like lost coins, over the course of your life. This class was so memorable because it was so little like school, and so much like life. School is basically a way of keeping people occupied — a theatrical set piece designed to take up time and spit out consenting consumers.
Any adult knows that what he really knows he did not learn in school. The gradual accumulation of experience is really how we learn. But unlike school, life is unpredictable, so it would be dangerous to leave the teaching of life to life. Just think how much would get left out of the curriculum, and how hard it would be to standardize tests!