Nepe, You made it clear how "decastification" ( this new word may go little further) would confuse people and lead toward elimination of racial stigma. But I am still unaware of your proposal. "Decastification" has been in practice for a long time. I don't know is it legal or not though. I have no problem lending my surname to anyone in this world. Current law doesn't allow anyone to own copyright of their surname so their is no legal problem on that issue too. So what's your proposal? Just a humble question.