Guns give people a false sense of security.
Some believe that by having them, others will be afraid and leave them alone. Some believe that by brandishing them they look tough. In reality, neither it true.
When some having guns, others think they must have guns as well so that there is “equilibrium”. Therefore, if everyone has guns, the fear goes from having a gun to who has the biggest gun. Of course, then everyone wants to have the biggest gun... and on it goes. {My rifle beats your revolver. Well my rocket launcher beats your shotgun. Well, my nuke beats your rocket launcher.}
Shuhak 