DS (12) has been given a detention for not handing in homework. I'm fine with that in principle, but it is after school on a day when he should have a piano lesson (which I've paid for)
Am planning to ring the school to ask if he can do it a different day, but am unsure whether they actually have the right to say no - As a parent can I insist that he leaves at the usual time, or does the school have a right to keep him back if they choose?