Don't get me wrong I fully support an opt out rather than in policy.
However DD (7 yo) has come home with a form and is asking lots of questions and it all seems a bit much. She has asked me what would I do if she died and whether I'd let them remove her organs etc and whether I'd do the same if it was me. The head cheerfully informed me they have an important letter we all should sign.
I find it all a bit bully tactics, surely it's a personal choice and nothing to do with anyone else.