Male, hair is about 70-80 cm long or something and pretty damn thick.
I started saving it because I listened to metal and hung out with metalheads. Had long hair for 7 years now and can't remember what it's like having short. Can't imagine cutting it off either. Would be like stripping myself of my personality.
I'm 18 and I have a mullet like a pro. Hair gets into my eyes -> annoys me -> I got rid of it. Hair covers my ears -> I have to pull my hair out the way to use headphones -> annoys me -> I got rid of it. Hair behind me doesn't affect me in any way -> I prefer longer hair -> keep it. There's my reasoning. I'm going to let my hair get to my shoulders hopefully. It's also very dark brown in case that matters in anyway. I'm fairly logical about my hair (I think).
My hair used to be very long (think Dragon Force guitarists but longer) but it has really thinned out since high school, no real bald spots yet but in a few years... anyway I shave it all down to about 2mm of stubble, makes me look like I have more hair.
Long, auburn with an almost middle parting. I used to have a fringe but I honestly just got bored of it and can't be bothered getting it cut anymore, hence why I moved the parting over. It's curly but I straighten it most of the time because it's somewhat unpredictable. I'm female.
My hair is gold colored with silver temples (that area is growing) and admittedly a bit of a bald spot toward the back. My hair is about two inches long and fades to 'skin tight' as it goes down. I do this mostly because i don't like having a sweaty head but also to make that bald spot a little less noticeable. My beard is tight and while also gold has some silver streaks around the cheek areas.
My identical twin brother (hey we have the same hair) has elected to shave his head completely like he has 'dome wax' and everything. He has no beard. He is very self conscious of the fact we're going grey and bald at 31. So he instead prefers to look like a tool.
Male - Mine is brown and long in a relatively smart style, the reason I don't have it shorter is because i've had it long most of my life and it's a scary thought to get it short after so much time having it long.
Every time I get it cut I do get it slightly shorter though so it's baby steps.
My hair is trimmed short at the sides but is a bit longer on the top and back, I also have a fringe with a weird sort of flick in it.
I have it trimmed at the sides because if I don't it curls outward and I look like a girl, but other than that my hair will do exactly as it pleases and no amount of jiggery pokery will stop it. Even when straightened my hair just goes back to its chosen shape after about half an hour. People told me that no-one else could pull the fringe off, so I decided to keep it, hurrah for me.