So the next time we hear a story about a 9 year-old who gets into the driver's seat of the family car and accidentally kills her dad by running him over in the driveway, I expect to hear a lot of JWN posters call for the banning of automobiles. The only way to make cars safe is to make sure no one has one.
This was your first post on this thread and your second and third posts, etc., are in the same vein.
Your argument is that any criticism of the judgement of the adults involved is hindsight. I call BS.
Actually no one has called for the banning of guns here, but have questioned the wisdom of allowing children to use automatic weapons. You give yourself away with your knee-jerk pre-emptive defense of unrestricted gun access - no matter the weapon, no matter the user.