When I was in primary school, my class had 24 children in it. It was the local school down the road in a low-income area of London. 2/3 of the children were white British and 1/3 were of other ethnicities. Of those of other ethnicities, there were second generation Chinese, Vietnamese, Nigerian, Jamaican children. Two of us were mixed race. It was truly a melting pot in that corner of South East London.