If someone agreed to pay you 10 btc which is currently valued at around $90k USD to legally change your name to bitcoin, would you? And you're not allowed to change your name back for at least 5 years.
I would probably do it and name my firstborn after bitcoin for 10 btc.
Why not, this is too attractive to resist. After all my friends are already calling me bitcoin without a charge. It wouldn't be bad to be legally known as Bitcoin for 90000 dollars.