I'm 40 and my hair is bra strap length. I like it long, it's easy, but mine seems to lack style other than long boho curly, which is more a vibe than a style.
I have friends in their 60s with long hair, and while the hair is healthy and shiny, it also lacks style. One realtor in townhas hair nearly to her ankles - it is beautiful, thick and healthy steel and silver, but she wears it in high pigtails. She is a beautiful woman with great hair that truthfully just looks stupid.
I think the thing is to keep the hair styled in a way that is contemporary AND that works with the natural texture of the hair. Where I live there are way too many women (probably me included) with long hair that is otherwise just shapeless and does not much to nothing for the wearer. There's a difference between pretty, nice and healthy hair and hair that looks good on a gal, right?
Ugh. but the thing that drives me bananas is long, shapeless hair that gets scraggly at the bottom - doesn't matter if you are 14 or 114, this just looks bad. And this hair in a pony tail plus bangs? yuck - even worse. Get a trim, already.
-all this said as she herself contemplates cutting off her below bra strap length hair not because she is 40, but because she feels she deserves to look well groomed, well styled, and like her hair is intentional, something more than just a head covering, you know?
-b.