Is Satoshi Nakamoto really the founder of bitcoin? Then why he did not show in public? What do you think the reason maybe? He might be a billionaire by now if he showed his true identity in public.
Nobody knows. He is afraid of being a target for the Mafia probably. Satoshi Nakamoto ain't even his real name probably. Maybe there isn't even one person who created bitcoin but a team. That's more likely. I guess we will never know.