The warning sticker on this lawnmower depicts that you should not have a child on your lap while operating, but backing over the child is okay. : r/mildlyinteresting
Decal, Safety - Mower Deck - Gravely
NASD - Agricultural/Industrial Mowers
Law Suit on Dangerous Mowing While Backing | Green Tractor Talk
Buy Safety Stickers for Ride On Lawn Mowers, Industroquip