To add, white people with curly, thick and coarse hair have to deal with just as much maintenance as those with ethnic hair. It's not about the color of ones skin or their race. It's hair. And people from all over the world can have just about any type of hair. Fine to coarse, thin to thick, curly or straight, no one race dominates any one set type of texture or density.
Disclaimer: I am only responsible for what I say, not what you choose to understand.