Telsa, there's something you need to understand about the American experiment: the founders intended to trust common people with dangerous things. This includes presses, property, and yes, deadly weapons. While this is (ahem) not entirely problem-free, I don't really see that trusting the gov't. to have a monopoly on the use of deadly force is problem-free either.
While it's not as common as it used to be, I remember growing up in a rural area where it was assumed that every household had at least one gun. Surprise: we didn't run around shooting each other.
But I expect that's hard to understand if you haven't seen it close up (which you wouldn't have on your side of the Pond).
If guns are outlawed, only the government will have guns.
-- Edward Abbey