I was dating as much older man in my mid-teens and he liked the age play type thing, so he always had me shave. Still do now out of habit.
Well I started like the day before my wedding. I was a virgin and was kinda shy about what he'd think...lol he actually was surprised. He said he'd never been with a girl that did that. And I didn't even really shave it all. Just the panty line and trimmed the rest real good so there'd be a little fuzz, but not a bush. I didn't wanna look like a prepuberty little girl. However doing this also helped with my period. When I had a bush sometimes blood would get the hair and dry and pull it, and hurt.
I shave because I don't like the roughness of hair down there. I only shave lips, I don't shave the pubic bone part- stubble regrowth is a painful bitch, and I prefer the front bit with at least a little bit of hair.