Children should be at least 12 before they operate a lawn mower, and at least 16 years before operating a riding mower.

Children should be at least 12 before they operate a lawn mower, and at least 16 years before operating a riding mower.
Children should never be passengers on riding mowers.
Prevent injuries from flying objects by picking up debris such as stones, small twigs or branches, or toys from the lawn before mowing.
Always wear eye and hearing protection.
Use a mower with a control that stops it from moving forward if the handle is released.
Never pull backward or mow in reverse unless absolutely necessary.
Re-fuel the mower outdoors and with the motor turned off.
Blade settings should be set by adults only.
Wait for blades to stop completely before removing the grass catcher, unclogging the discharge chute or crossing gravel roads.
Sources: American Society for Reconstructive Microsurgery, American Society of Plastic Surgeons, American Academy of Pediatrics, and American Academy of Orthopedic Surgeons