Perhaps it's because most schooling seems irrelevant to many of the students? I went to very good schools and actually enjoyed quite a lot of my schooldays but even while I was there I could see that a lot of it was a complete and utter waste of everyone's time.

I spent six years attending French classes and three of Latin. I can't read, write, speak, or understand either one. I moved to Norway fifteen years later and spent a couple of hours a week in evening classes for a year and a few years of immersion in the language and now I am fluent with much almost no effort.

So why do schools all over the world persist in educational methods that don't work? Why do they never teach people how to handle money, how to negotiate with tradesmen about repairs to a house, how to drive a car.