But you will know ABOUT that country only, not the whole world, may you like history but imagine you wan't to be a doctor as the last example and they teach you about art, why D:
If you wan't to be an artist you don't even need to go to High School, maybe.
Also, the high school for me it's only good for being a professor or a minority of jobs that are in the world.

Someone told me that the things you learn in school you forget them 2 weeks later..