Yes, it is true, not everywhere are people fantasizing about what they should do when holding a powerful stick in hands... In some localities, they really teach them selves to control their brain. But gun is a possibility and therefore an easy Idea, so I agree that guns are driving human's mad, but there are some human's mad without a guns.
Putting a gun in the hands of an adolescent male is the same exact result as giving him cocaine. It triggers the same exact brain chemistry and these males often continue to chase a higher and higher adrenaline rushes.