That is true but the number of users doesn't influence on the fact whether Bitcoin is international currency or not. Since Bitcoin is already used all around the world and it's not thight in any way just to one nation and country, that makes it an iternational currency with no doubt. And that international "feature" is part of the great advantage comparing to some other currencies.
The number of user actually influence it as well. The more people that aware of this coin, the easier it will be accepted by a country. Therefore I think that when there are alot more people that actually accept it. The chance for it to become a world international currency is higher although it might not be because each country still has fiat
I agree, but bitcoin has no problem becoming an alternative currency( like a go to currency if you need to send
transact, buy etc..in another country ), all bitcoin need is popularity and a good image(which is hard to do) to
achieve becoming as an alternative currency.