Why did Native Americans have Mohawks?

Native Americans had Mohawks as hairstyle and as tribe name, with Mohawk hairstyle originating from Mohawk tribe who shaved sides of head leaving strip of hair, symbolizing warrior status and practicality for battle, not just fashion. Mohawk as Native American tribe is Kanien'keha:ka, meaning People of the Flint, part of Iroquois Confederacy or Haudenosaunee, based in New York and Canada, with name Mohawk given by Algonquin enemies meaning man-eaters. Mohawk hairstyle, with shaved sides and strip of hair down middle, was worn by Mohawk warriors and other tribes like Pawnee, as practical for battle, intimidating to enemies, symbolizing courage and status, with hair often stiffened with bear grease and dyed, and used in ceremonies. Why did Native Americans have Mohawks? For warrior culture, to look fierce in battle, for practical reasons to prevent enemy grabbing hair, and for spiritual reasons, with hair having cultural significance, Mohawk style showing bravery and tribal identity, later adopted by punk culture in 1970s as rebellion symbol, but originally Native American warrior hairstyle with deep cultural meaning for Mohawk tribe and other tribes, not just fashion but status and practicality.