for a simple reason, profit. reporter: accidents do happen even with proper training. in 2008, an 8-year-old boy fired an uzi and it recoiled and killed him. just four months ago a shooting instructor in arizona was killed when a 9-year-old girl shot a fully automatic machine gun under close supervision. there s no minimum age for possession of a long gun which is a rifle or shotgun. 20 state and the district of columbia set their own laws ranging from 14 in montana to 21 in illinois. in the remaining 30 states, it s technically legal for a child to possess a long gun. cheyenne has, in fact, been advocating for fewer gun restrictions. testifying before the new jersey state legislature vocalizing her stance. i think about parents saying
this about soccer games or football or dance competition. it s the same thing. but we re talking about guns. it s still the same thing. reporter: i don t think of kids dying with a soccer ball. we were at a match where there wasn t even a papercut. reporter: cheyenne didn t win the competition in the end but enjoyed meeting the pros and is looking forward to her next match. kids and guns don t always mean bad things. i m trying to reinforce that kids can shoot if they get taught the right way. that s the point a lot of people make. these aren t kids out in the streets with gun but under strict supervision. this is different. how many states don t have any restrictions? the vast majority of states don t. cheyenne and her dad believe if kids in america were taught in school how to shoot a weapon they wouldn t be as curious. if you tell a kid, no, don t touch a gun, they ll want to go after it and like they talk about sex in school, they should talk about guns and shooti