 Why do so many people firmly believe that children should be like their parents, particularly in terms of their general colour and racial characteristics? It is difficult not to view this desire, and attempts to implement it, as a form of ‘ethnic cleansing.’ It smacks very much of the pressure that so many societies and cultures have put upon their members not to ‘marry out’ or to put it more bluntly, not to mate with somebody of another tribe or race. (Harris 1998: 21)