i can’t now remember when photoing other people’s children, even photoing them completely by mistake while photoing something else entirely, became something you couldn’t and wouldn’t ever do. But it must have been some time in the noughts, and definitely well before July 2014, when I photoed this photo:
But I don’t think there’s any harm in showing this photo. No faces are at all visible, let alone recognisable. And of course faces are not the point of this photo, the view of the top of the kid’s head being exactly what makes it work so well.