RE: How young is too young to shoot a gun?
Both my kids started shooting at 5. - bb, air rifle and .22 at first. My daughter always wanted to shoot the next bigger size, once. She then learnedher limitationsand wouldwait another year to try again.She is now a teenager andshootsthe .30-30, .40 S&W, and 20 ga pump. She does not like the 12 ga pump. My son marks his progress in a two year lag behind her. Youcan feed off the kids actions and see their interestand ability.
Bringing them up too soon may bring in too muchrecoil andcould lead todevelopingbad habits and alack of interest. I now have my kids back toshooting a tack driving.22 rifle (I almost lost them to shooting due to apoor performing.22). The successful feelingof good shot placement, even on paper,isa good motivator.
I did thewhole Eddie the Eagle routine with both of them and kept the gunsin the safeas they were growing up. You have some good years ahead of you. - Good Luck!