Can't allow potentially disruptive behavior in school for the same reasons it isn't allowed in prison. You do the math.
Hey, I’m no fan of the public school system. They’re being forced to be there, so it is prison in a way. On the other hand, parents have the right to send their kids to private school or homeschool, and opt out of the rules of the public school system. It’s a big gray area, and I don’t claim to have the answer.