The question, "Are they yours," most often I think is just a conversation starter. I honestly don't think people were trying to be rude. We all are curious about things and people who don't fit our "mold" of how we mentally organize our world. If you live in an urban community where most people are black (like mine) seeing someone Asian or White is unusual and they get started at. I brought a Chinese couple to my rural, white, community where I grew up and warned them ahead of time not to be surprised to get lots of stares. Low and behold they were staring at the Amish who seemed normal to me because I grew up with them. We start at short people, tall people, people without legs, fat people, famous people, people with tattoos all over their faces, tall skinny modes, beautiful women with old men and gorgeous young men with a couger. We all do it. We try to hide it but we are all fascinated by anomalies in our mind. If we don't do it, then our mind doesn't create the synapses forming connections that this is normal. The more our brain sees it, the stronger the connection and the less odd it becomes cognitively. I never minded the "question" and I never experienced overt racism with my children. Perhaps they did, but as a whole, people let us be.