It costs nowt extra & gives you more options. I dpersonally prefer a check box saying :-
Tick Asians
Tick Whites
Cross Blacks
Tick etc
Yeah but then again there would have to be a tick option for no Welsh sheep sh***ers, and nobody would buy from or sell to them cause they know the Taffy was a Welshman, Taffy was a thief, rhyme.
It would be racist and illegal too.
How would you tell if the person you are selling to was Chinese, Russian, Aborigine or Red Indian anyway?