Except this shit doesn't actually protect children. We learn not to fuck about because, in the past, we've gotten ourselves hurt doing it. We remember the dangers of football because we took a ball to the face, or the obvious weak point.
What do I remember about the dangers of full-contact rugby? Well, in school it wasn't allowed. We played tag rugby in school. With a Welsh instructor. That's what I remember about it in school.
It wasn't until college, when I suffered soft tissue damage thanks to a misplaced kneecap and a lot of momentum. That's my memory of why I should be faster. Not any health and safety substitutes. Just experience. You bring kids up with foam and softness, and the second something real hits them, they're gonna lose their shit.