It is a common practice to see people trying to license their gun for defense or protection purposes. However, there are many responsibilities you would need to fulfill if you were to have a gun. Even if you were to take your gun around whilst you are traveling, they are supposed to be in gun cases or gun bags because it is actually illegal in some countries to have your gun exposed in public. This is because it can scare some people if they see you walking around with a gun; also it helps to prevent another person from knowing you have a gun just in case they want to tamper with it. Even if you are home you should ensure that the gun is stored away in a gun safe or gun case and out of the reach of children. There are cases where due to negligence on a gun owners part in not storing his gun properly it has led to the death of innocent children, who shot themselves by accident whilst playing with the gun.