I have straight black hair which reaches below my elbow. It's silky and shiny and barely stays up with a hair tie. But my friend's boyfriend is like it's too long, get a haircut. (The prat)
Most Helpful Girl
Long hair is good, but only if it's reasonably long and healthy.
Most girls who grow their hair past their midback have nothing but dead, stringy, split ends and that looks bad and unkempt.
Generally speaking shoulder to midback is preferred because it suits almost every girl. Short generally is unflattering an too long is weighed down and dull/blah. Most girls can't rock short or long hair.
I say just make sure to trim the ends. Too many girls with long hair have nasty looking hair. It's beautiful when it's healthy, especially if it black. But I'm biased since I absolutely love black hair