* Hair density varies: The number of hair follicles per square inch on your scalp can differ greatly from person to person, regardless of hair color.
* Individual variation: Even within the same hair color, some people have thicker, denser hair than others.
* Hair thickness: The diameter of individual hair strands can also vary, meaning someone with a seemingly thin head of hair might have thicker, stronger strands.
So, it's not about the hair color, but rather the individual's genetics and hair characteristics.