what the hell is it to you?
Their carrying a firearm could interfere in your life one day, whether you like it or not.
When I first debated guns on messageboards with Yanks (back in 2001) I stated from the outset that with 99 percent of gun lovers in the US are power trippers and love the look and feel of a gun. Having seen many docos from the US on the subject, and having come across many gun lovers on this board, I have not seen anything to change my mind.
Almost feral their love of gun and the power trip it gives them....
Goose is right about the fear aspect too....