Everyone should carry a gun on a daily basis for a period of time because carrying a gun develops mindfulness. Mindfulness is very important in mental and spiritual development. Carrying a gun puts the power of life and death in the hands of the individual. By doing that it makes the individual contemplate their thoughts and their "potential" actions. By contemplating "potential" actions It forces the individual to be responsible for their "actual" actions. Thomas Jefferson speaks on the benefit of carrying a gun.
"A strong body makes the mind strong. As to the species of exercises, I advise the gun. While this gives moderate exercise to the body, it gives boldness, enterprise and independence to the mind. Games played with the ball, and others of that nature, are too violent for the body and stamp no character on the mind. Let your gun therefore be your constant companion of your walks." —Thomas Jefferson, letter to Peter Carr, 1785