Most people go to college or university because they want to achieve something, not because "people/the government" expect them to do that. You act as if everyone who doesn't drop out of school and spend their whole life flipping burgers are just mindless drones doing what they are told to do when in fact the majority of those people are learning to do what they would like to do later on in their life and who will probably have a better life because of it.
And it's fair enough that you don't consider yourself dumb, I would probably not either if I were in your position. But the simple fact is if you do not learn about things and have no historical or social perspective on anything (I seem to remember you don't even follow the news) then you are basically dumb. Whether that affects your quality of life on a personal level is another matter.