if im not wrong i think bitcoin is already international crypto currency because all of us in different nations/country we still can have bitcoin and we can buy bitcoin as long as we have internet . so im being confused how come do you think that bitcoin is still not international currency. and also bitcoin is decentralized currency so it can considered as a internation currency.
It not yet international crypto currency fiat will always be also paypal is still there that can people choose whether they want to do shop online or not. Bitcoin will be considered as international currency is he will be on the top that people choose to used not everyday but will used online transactions like shopping through online markets