So you're saying have all children in school go do whatever they want?

This keeps everyone organized in the school. If even 1 of these rules weren't there, the school would be chaotic. Kids cant say nor do what they want because they are not mature enough. Now the whole "No input for decision making", if that wasn't there then who makes the rules? If you go to your job, do you tell your boss how to work?

It's how the world works