People getting in the line of fire.
There is no acceptable or unacceptable ratio.
Parents being stupid is somehow an imperative for me to divest myself of guns? I don't think so.
Some parents have been being stupid forever, I don't see than changing.
Nor do I see that as a particular problem I can do anything about.
I'd be much more worried about the damage the stupid parents allow their whelps to do with automobiles.