Chinese Faces

Why do chinese and Taiwanese girls have wider faces ?

I mean like. the bushmen have flat noses because of the dust and the heat. and some species of humans have long noses for .. I dont know , something about where they came from and the weather. So why do chinese ppl have wider faces. especially the females. around their nose on the side it is wider than most western ppl’s. What is it about their country or origen that requires this kind of face
so why do idians have wider faces. what is it about there enviroment.

well in my anthro class a few yrs back i remember they said that asians are part indians and i guess indians have wide faces..so maybe thats why?