[AndrewC]

Believe me, if Mr. and Mrs. (or Ms.) Troublemaker had been called into school and told their 7 or 8yo child was permanently expelled from all classes for failure to follow the rules they'd care.

I don't think they would care. If they would have cared in the first place their child would not have been such a troublemaker by that age. In any case, there would be some liberal advocacy group that would step in and sue anybody that would deprive a lovely child of the right to an education. That is, unless the child was a Christian and made any mention of God, in which case the parents would be told the child deserved the punishment.

[brityank]

... the right to an education.

My point at #1 above -- there is no right to an education. It is, and should be treated as, a privilege given to those members of our society that follow the rules.