Why is head hair different from other hairy parts?
Why is my hair smooth and soft compared to the other hairs?
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Pubic hair is much, much thicker.
Yeah, but why is it much thicker and less dense? Same for beard and leg hair and every other hair I can think of as well, so for protection? From what (I can think of rubbing maybe)?
Also, fun fact, public lice and head lice are separate species. Head lice can't survive on pubic hair and vice versa.
Coarser
Like sand
And it gets everywhere.