Don't knock it till you try it. It's fun to do in a safe environment.
There's nothing wrong with firing an Uzi on full auto. However, there is a problem with firing an Uzi on full auto if you're a 9 year old.
When I learned to shoot it was with bolt action, lever action and break barrels, the way the odds of something bad happening was low.
Which is what they should've done with the daughter.