ETA: (accidental submit; sorry) I'm in the same boat! Not entering my ID information into any website, much less ones they've got on the list. And so they've successfully boxed us in. At least for me, I intend to raise hell about it aside from just not sharing PIA, but I don't have any delusions of it's effect.
While I think children need to be protected online, this won't but neither will trying to get parents to parent better