Teaching a child to shoot a .22 is VASTLY different than trying to teach a child how to shoot a fully automatic Uzi. First the .22 is usually a rifle and has plenty for a child to grip on(in terms of stock and fore grip). Where in the uzi has none of these features and relies primarily on hand strength to hold on to the fucker. Secondly the .22 comes in children's sizes(smaller so that a child can hold onto the fuckers when firing). Uzi not so much. And finally a .22 has virtually no kick. The uzi on full auto kicks like a motherfucker.
I was taught to shoot at 9. I learned how to respect weapons, I learned how to care for them, I learned range safety. This moronic instructor sounds as if he failed to remember some basic range safety lessons, mainly never stand directly beside(or in a frontal angle of) a shooter. This is of course assuming that the little girl didn't muzzle sweep the entire range.