I'm not against firearms. I've never seen much point in the private ownership of assault weapons and pistols but I'm a member of the NZ military, I hunt, I have my own firearms license and have been exposed to firearms from a fairly early age.
But there are some things I really don't understand. A fifteen year old is more than capable of successfully operating a firearm, even an Uzi. However this would idealy be under the supervision of someone who is experienced, certainly not on their own with anything bigger than a .22 and you would never think that a fifteen year old was qualified to act as an instructor. There's a lack of maturity and experience there that has, on many occasions, been a recipe for tragedy.
Now the eight year-old... I'm sorry but I can see no reason that an eight year-old should be given a sub machinegun. Ever. Even at a gun show. It's no different than giving an eight year-old the keys to a sports car and telling them to take it for a spin. Kids at that age hardly know what firearms are, certainly not enough to treat them with the care and respect that is required. KIds of that age will have an interest in guns - but that's what cap guns, water pistols and potato guns are for. You do not give an eight year-old a deadly assault weapon.
A few years ago I was test firing a pistol at a range. In a moment of idleness after firing I turned to talk to the instructor, pistol still in hand. It was empty but everyone knows you do not point a gun, whether unloaded or loaded, at anyone. It was a flash of not paying attention, and this is from someone who is fairly experienced. I was nineteen and even I fucked up. What the Hell are people thinking giving deadly weapons to young children who simply do not pay attention, who don't understand the gravity of the situation and can't comprehend to consequences of a posible accident.
I don't know who's to blame. The gun show itself for allowing a fifteen year-old to be an instructor, (not to mention allowing an eight year-old to take part,) the fifteen year-old instructor for not being as experienced as he no doubt believed himself to be or the kid's stupid parents who thought that it's a good idea to give the control of an Uzi to their eight year-old kid. Either way it suggests a group of people who do not understand firearms at all, a group of people who are content to use them as playthings while ignoring their primary purpose - to kill.