Not only police officers carry guns. Many other people use them for recreation and for fun. I do not own a gun, but if I wanted to have one, I would look at some mossberg 500 tactical accessories. Having a gun can prove to be useful in many situation. Not every country allows its citizens to carry guns. In some countries such as Switzerland guns are mandatory to help people defend themselves if a need arises. Every family in Switzerland need to own a gun and use it if necessary. I believe that each citizen of every country should own a gun if he knows how to use it responsibly.