“No 9 year old girl or boy should be discharging a fully automatic firearm.”
That’s what everyone is saying here. To give give the instructor the bennfit of the doubt, he may have had some other stronger children shooting well without his assistance, and became complacent thinking this one could also.
I think he thought it would be a treat for the young lady and never contemplated her ability to control the weapon. I feel bad for the girl, she is going to have a lot of issues with this.
But, smeone like that HAS to have his head in the game 100% at all times. It only takes one lapse to achieve disaster. The instructor was in the line of fire when the girl put her finger on the trigger. That means she was not properly supervised while holding a loaded and charged sub-machine gun.
I mean, "Keep you finger off the trigger until ready to fire" is ingrained in anyone who owns or uses firearms. In this instance she obviously wasn't completely clear on that rule. She should not have been left handling that weapon. A lapse that made it a bad day for everyone.