Student protesters were punished by being ordered to waste time in school on Saturday. So they protested again and called it a sit-in.

It seems to me that the school enforcers are doing this solely to demand obedience for the sake of obedience.

How dare schools force students to come on a non-school day as punishment. What gives them the legal right to do this, anyway? What happens if the student has other plans and refuses to cancel them?