"Happy trails" on women?

So, I am very fair-complected, with dark blonde hair and blonde, nearly invisible body hair for the most part, except for my pubic hair, which is a light brown. I didn't used to in my early years in high school, but now, at 19, I do have a "happy trail" leading up to my belly button. I shave it, because I don't think it's exactly the most attractive thing on a woman, but out of curiosity, how common is this in women? Please respond only if you're over 18; otherwise, I wouldn't necessarily expect you to have one yet. To guys, would you care if your girl had a happy trail, even if she shaved it and you couldn't really see it at all?