It's not just a problem of lack of data, it's a problem of composition of data. If there's a signal that increases your accuracy for asian faces and decreases i

It's not just a problem of lack of data, it's a problem of composition of data. If there's a signal that increases your accuracy for asian faces and decreases it for caucasian faces, in systems deployed in China the system weights will be adjusted one way, in systems deployed in Europe you'll get the other way, and Asians in Europe and Caucasians in China will get bad performance. Maybe people don't care about that, but wait until that performance difference is between black and white people in America.