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? 10 btc is more than enough. Theres nothing to lose if you change your name. And if anyone dares you to do that challenge then he/she is the only one who knows that it was your real name. A lot of people would wonder if that is your real name because you and the person who dare you only know the truth.