Thinking about that though, I wonder if you could change your legal name to be an etherium address? Take a long time to write, but at least you could sign your name with ECC and all your contracts would be smart contracts
Varies by country, but yeah; Prince never legally had that name, but adopted it as a stage name.
Often wondered about that though; cyrillic or greek letters in names can't be that rare, I would think, even in countries where those characters aren't the norm for the country in question.