depends on if you spend the time to teach them and how responsible the individual kid is i guess ... my dad took us to the woods shooting .22s around 9 id say and shot with us for awhile .. by 11 i was given my own winchester .22 to keep, care for, 'and' defend my mother and the house .. i pulled it on one character looking at the car in the driveway one time .. let me tell ya something, theres nothing thatl make you wet your britches faster than a kid with big eyes and a bead on ya lol that guy freaked .. turned out to be nothing, friend of my dads that was gonna buy the car .. but dad wasnt there ... i never heard anything about it lol ...
 
@dizzums: one thing is US older folks grew up in a completely different time of no internet, violent movies, video games and Tik tok challenges. Back then we were taught to never point anything even sharp at anyone but these days there are endless videos of people doing dumbest sh!t ever and somehow that’s cool. I don’t trust my son who just turn 9 with a low power pellet gun by himself even with very limited internet and video game exposure. 
 
We were all sneaking around the neighborhood and little wood lots around the age of 12 with our Crosman 760’s and Sheridans. Most of us were shooting real guns with our dads since we were old enough to pull a trigger. And yes, occasionally we got in trouble with our guns but those were different times. Quite often I hear it’s not how old the kid is, it’s his level of maturity with a weapon. The X factor that’s overlooked is who the kid hangs out with. It was usually one of the neighborhood nut jobs that got the responsible kids in trouble. Even though most parents think their kids walk on water, it’s still up to them when they want to trust their kid with an implement that can cause harm to persons and property.
 
At age 9 I was hitting my stride for figuring out ways to be mischievous when the adults weren't looking. Personally, & I stress PERSONALLY, there's no way in hell I'd leave two 9 yr old boys ALONE with HP airguns or firearms. Had we had those when I was growing up as opposed to the old Crosman 760's I'm SURE some serious trouble & damage would have occurred! Yeah, I know some kids mature faster than others but guns, ammo, no supervision? That's a lottery that shouldn't be played! 
 
DEPENDS on the kid..!

MANY years ago, I watched a 12 yr old...ALMOST shoot his dad in the back with a .30cal. carbine..!

The kid and I were both at the back of the truck loading our weapons. The dad was shooting targets. The kid finished loading before I did, he loaded the magazine into the gun and pulled the bolt lever back...as he was walking, behind his dad. The only time I've ever been frozen in a possible bad situation, and could not say anything for fear of startling the kid into pulling the trigger. I puled his dad aside and told him what almost...just happened. I don't know what the outcome was..!

Kids, like adults, have a different amount of maturity, at different stages and ages in life.



Mike
 
It seems to me like it was about 1962 when you could buy a box of 22 long rifles for $0.26. we lived in a little town in Western Oklahoma I was 10. On the other side of town was the town dump it was full of rats. My cousin was a year older than me my friends were all my age we all had 22s. Whenever any one of us could get together $0.26 we pull together three or four guys go down to the drugstore in the middle of town by a box of 22 long rifles and head on over to the dump. Now we were just typical boys but we were raised with guns in our hands from the time we were five. I would say it is more important who parented the child than anything else in the discussion we're having. Almost any child can be taught to handle a firearms safely by the time they are six. There are many many full grown men and women in America today that I would not hand a firearm too loaded or otherwise.
 
At what age should a young person be on their own, no adult supervision ? at the back yard range out of sight ? I am asking because i have a friend that lets a 9 year old do this with his 9 year old buddy , .22 prod 

Maybe if i was on the deck watching . maybe .i'm just an old fart ?

I recommend that folks save themselves some trouble and abide by the law. On the inside, if you know your child, you should have a fairly reasonable idea of what their proclivities are. 
 
No way I’d leave a 9 year old of today alone with a projectile hurling tool. Especially if their parents are young and got some of that “it’s all about me” generation in them. Can you imagine what their kid is like? Yeah big safety issues for the kid, the neighbors, and I guarantee that poor p-rod won’t be the same as it was before you handed that gun to him.

can you say pull the trigger with the bolt pulled open? Double to triple loaded for sure, the crown mangled is a given, and I can almost be sure it’ll be dieseling when fired and you’ll wonder what happened to that container of 3 in 1 oil you had on your work bench