You obviously are short on brain cells. Men do not have a need to hit other men, and when they don’t hit others it doesn’t fester into a mood altering problem. If you suffer from this as well go get help.
Actually it is you that lacks in brain cells, and other aspects of being a robust man.
From the beginning of time, masculine men, the warrior types, have fought, wrestled and competed in mock combat with each other, no matter whether Mongols, Romans, Sioux, or Americans.
One cannot learn to fight, defend, protect, and physically dominate and overcome, without lots of experience and practice and learning.