The school has the right to prohibit on line activities at school but not the the right to impose it at home. The use of child safety is being used to reduce our freedoms to be flawed. Over weight kids are a real factor therefore in the name of safety/health the school should ban the eating of fatty foods at home. The school is there to educated-which most are doing a poor job of it-not regulate the homes of its students.
Catholic schools most certainly do have the right to impose rules of conduct in AND OUT of school, on students, parents and teachers. They already do it. They've done it for centuries. YOU have no right to demand they do otherwise.