Hair styles

I've never understood the obsession with hair styles, like why are there so many?? I know what your going to say, but Alec there supposed to express yourself! Well honestly how much does your hair have to say!? Like god damn! That's a lot of things for hair to say. Personally I have one hair style that I might change up every few years, it's simple and easy, why you need more than that I don't know, are you trying to have a whole conversation with other people with just your hair?