My DD is 3, she has very fine, thin hair. It covers her whole head but her scalp is visible when I put it up. She had different layers where I guess it’s growing at different rates from different areas. It grows in length but thickness wise it’s just so so thin. Does anyone know if this a sign of what her hair will be like for childhood/adulthood in terms of density? My hair is also very fine and thin but I have a lot of it, and my husbands hair is very thick. I know in grand scheme of things it really doesn’t matter, I’m just wondering at what point hair thickness is set? TIA