The troubled teen school I was sent to in the mid naughts had and has parents sign a form which releases them from liability if a kid gets injured. They’ve beaten the shit out of kids for things like asking to go to the bathroom, or having religious amulets.

It’s so obvious that she was coming up with shit as she went along.

The Deathly Hallows were a huge asspull. Trying to make an overarching story was a mistake, the story worked best when it was “monster of the week” standard children’s fare. That kind of format can tolerate the “I’m going to introduce something new that should have wider consequences and then forget about it immediately afterwards” problems (Time Turners, Legilimency, polyjuice potions, love potions…)