Why An Army Personnel Is Asked To Have Short Hair???
For the most part it is intended to promote both an appearance and a mindset of professionalism. It’s the same reason that we are expected to have carefully pressed uniforms, immaculate buttons, and straight gig lines. None of these serve practical purposes, but they instill a sense of pride, discipline, and an understanding that you are part of a collective whole. Those attitudes carry over into day to day tasks and combat.
Click next to see the accepted theory