Well, my school certainly didn't "know" that I used to walk a mile there on my own at a young age - and, yes, my parents were extremely loving - and, yes, it was a responsible school.
But why should a school "know" anything of the sort? That's sheer guesswork. There could be a perfectly legitimate explanation for it. But I know that if I was the parent and someone "grassed me up" to the school for a perhaps innocent reason, I wouldn't be best pleased.
Especially when they hadn't had the decency, or backbone, to ask me first. Too easy to do it your way - saves any potentially embarrassing backdown on your part, huh?