Some home invaders got into a home and forced a kid of 11 into a closet. They had guns. The kid got out and found one of the machetes of the family.
The kid swung the machete and struck the back of the head of one of the invaders. The invader, discovered that the back of his head was pouring out blood, dropped everything he was trying to steal and ran out. The fellow invaders ran out with him.
So, should 11 year old boys be able to have and use a sword, knife or machete?