http://www.collectorsweekly.com/articles/why-americans-love-guns/

“The Hollywood version of the Wild West had a huge impact,” Bell says. “One of the most shocking things in the Vietnam War, which was all run by Baby Boomers, is we had an actual Army edict that we wouldn’t fire unless we were fired upon. Well, that came straight out of a diet of Westerns that came out after mothers got upset about all the violence on TV. All of a sudden we get into a war, and they’re saying we can’t fire unless we’re fired upon? That’s straight out of the myth of the Old West, but it never happened in the Old West. It’s a dangerous belief.”

Still, our frontier roots mean that Americans may never give up the idea that we’re all gun-wielding cowboys who can make it on our own in the wild.

“Other cultures didn’t have the resources of land that the United States did,” Richardson says. “That’s one of the many things that set apart the American experience from, say, Europe or Asia. Of course, ‘open land’ is a huge misnomer, as if the land was not in use, as if there were not people here. But still this notion of the availability or the supposed availability of land certainly determined America’s arc. It determined American history.”