Guns and travel?

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The recent discussion on guns in restaurants rather suprised me in how many Americans see keeping a gun as a normal thing to do, as I've never lived anywhere where keeping guns is the normal trend. So my question is two fold: If you are American would it worry you to travel to a country where you wouldn't be able to take your gun along as protection? Obviously if you are an American who does not routinely keep a gun would you like to be somewhere without guns being carried as standard? If you are from a country which does not have guns as the norm would you be worried about visiting a country where guns are routinely carried?