.. and, I suppose, there is a little in the way of genetics involved.
The rite of passage/initiation practices of antiquity and before surely selected for young male bravado .. otherwise the tribal group would fall victim to a more aggressive bunch.
Most initiates live through it, some are critically injured, some die.
There is no point trying to stop such antics .. about the best we can do as a group is to encourage rational risk assessment and management .. and hope like mad that our sons/grandsons etc are in the survival group .. regardless of whatever antics they may get up to along the path to maturity.