Hairlines and Race

I was curious why less minorities lose their teenage hairline then white caucasion males? They eat similiar diets, why could this be?

There are clear genetic differences that must be responsible for the different shapes of the hairlines when comparing one race over another. African and Asian (all of Asia) have flatter hairlines (more convex shape) and may retain more of their frontal hairlines than Caucasians (where 95% of males lose their childhood hairlines and recede upward, particularly in the corners taking on a concave shape). It’s in the genes.