An American Doctor schooled in history would know the single largest killer of children with guns is a government that does not fear the population fighting back. If they actually cared about saving “even one child” they would have Public Safety Announcements, pamphlets, etc, teaching firearm safe handling etc. provided for free without a record anyplace of who reads/watches them.
Dad taught us firearm safety from the earliest of my memories. Biggest impression was when I was about 7 and he took me out in the back yard, set up a gallon jug full of water, and shot it with a 12ga from about 15 yds.
Best gun safety tip, training or whatever for kids under 10 is DO NOT TOUCH!!!! or you will get your ass handed to you. Telling them you will get a “time out” just doesn’t quite have the same impact.