Does anyone condone or not mind interracial marriage and the children from them?

In my daughter's first grade class, one of her friends is a girl whose mom is white and dad is Vietnamese. My daughter knows this, and it's just a characteristic of the girl, like having dark hair and brown eyes. It doesn't concern my daughter. She knows about people's ethnicities, but she doesn't care, because we teach her that it doesn't matter. There are many mixed-race couples who are parents of kids at our daughters school, and it doesn't seem to matter to anyone. Black/White, Asian/White, Indian/White, Black/Asian, we have it all.