bitcoin is now world famous new digital currency,us,denmark,uk,netherlands,india also accepting bitcoins. in future world wide it will be currency.it works like a bank and atm also.this is easy to send and receive the money,fast and very secured.bitcoin is new innovative payment method so it can be future to all over the world.
It will become currency in future but it will take a long time before all country adopt bitcoin as an official currency. Hard to know how many country recently accept btc.