Aside from that: Didn't a lot of shit almost go wrong, because the decisions the kids made were fucking dumb? Like, in the first book, the bad guy had no way to reach the philosopher stone hadn't Harry not interfered? Or in the second, two children not telling any adult of the book that has fucking Wizard-Hittlers conscience in it?

I mean, most of the decisions these children made were horrible and a lot of them backfired spectacularily. So much so that JK frequently had to use Dei ex machina so not everyone died prematurely.