I don't own a gun. I've never shot one.
But I'm all for them. This bullets and burgers place sounds like a lot of fun to me, as I know I enjoy burgers, and I believe I would enjoy shooting. I don't stop walking down the street for fear of muggers, or driving cars for fear of accidents. Guns are just one more dangerous thing in a world full of dangerous things and dangerous people.
Should the nine year old have been shooting a fully automatic weapon? No, she shouldn't have been. Is shooting guns in general somehow detrimental to kids and society? I don't believe so.