It is already a international currency as majority of people across the globe are using it, the only thing we need is that it should hit the mainstream to get more popular in future.
It is true that bitcoin has become an international digital currency. But not everyone knows what bitcoin is, Because lack of knowledge about bitcoin makes people less sure with bitcoin. Nowadays bitcoin is popular, but there are still many people who are out of date and don't know the information about bitcoin.
I would say Yes, Bitcoin is considered as the international currency which is a crypto currency thay only lives in the cyberworld and decentralized was occured. Most of people also on my country didn't have enough knowledge about bitcoin though they heard about bitcoin and they think that its scam. Well, we are lucky to know bitcoin as of this time since its value getting higher as the time passes by, having a good profit in the future.
Exactly ! The problem now is not all country legelized bitcoin as digital currency but a lot of people already using it in their country even if its not yet legal. If all countrt make it legal to use bitcoin as daily transaction, this could be great to done.