Black hair= Goth or lesbian??!!! Now that is ridiculous I think! It all depends what look you are personally trying to achieve. Also, black hair doesn't look good on everyone, just like blonde hair doesn't go with others. Honestly, it depends on your skin tone, hair cut/style, fashion sense, culture etc.
I have always had dark brown/black hair and I dye it blue black every 2 months just to touch up roots ( got white strands young
unfortunetly) and to add that extra shine that I love. However, I am Greek with light olive skin complection so black seems to suit me very well plus it looks natural even though I dye it! Nobody has ever called me a lesbian or a goth/punk chick. Not to brag or anything, I just get compliments and people think that I look exotic. BUT I do carry myself in a different way just incase...for instance I avoid wearing too much black, and I keep my hair well groomed long and femine looking.
My point here is, don't listen to those stupid stereotypes and go with what you want to do. Do what makes you feel happy and also what looks good ofcourse
If you wanna come across as a lesbian i'm sure you can do it with blonde hair too. If you wanna look goth...dye your hair black/blue/pink, mess it up or something and go buy the proper clothes to complete your look. If you wanna look exotic go for it, i'm sure some tanner could help if you are too light complected.
However, think about it before you do it. Black hair is a hastle if you like changing hair colors often or wanna go light again someday. Black dye is hard to get rid of, not that it can't be done but it will stress your hair out too much, especially if you have been dying your hair black for years.
So good luck to you girls deciding right now on what to do. Just THINK THINK THINK first on what your goal here is before you regret it and find out later that thats not what expresses you as a person