Hmmm, well, I'm asian, and my hair is like, up to my butt- a few cm longer, and i wouuld be sitting on it. I basically have to wash it every second day to keep it soft and shiny, but if i wash it everyday, it goes dry and limp. But on the day that i skip washing my hair, it goes oily near my scalp, and also limp and easily knotted at the tips, so I'm really at a loss at what to do- it either gets dry, or oily, and is basically healthy looking only 4 days a week
But for some reason, everyone still thinks its nice but meh. OHHH, and also, layering your hair makes it prone to more split ends, but i suppose you cant really do anything about it.