How do schools limit free will?

Schools asume and say they don't influence in how kids develop, however in their politics they include factors that standardize kids.

Yes, they do limit the students free will in many ways, including the limitation on how they must look, or say, or dress-up like, or even what they must think, according on what the society says it's OK to believe in. Schools, unlike they are doing, must be the impulse to make the kids develop their personalities in any way they want, and only if this isn't a risk for the other people that surrounds them.