If all countries can accepted crypto currencies in there various countries, as a means of payment and as a means of online exchanges, such as money is, money is anything use as a means of exchange and general acceptable. With the means I think all cryptocurrencies (bitcoin) will definitely go round the world, and will be use as a means of exchange. I will be so grateful to the creation of crypto currencies. This will also help our future generation, Remember something when we do international transfer across the countries, it may take a while to get the money to your local bank account, but with cryptocurrency you can get instant reflection if bitcoin etc is transfer to wallet,And you can make use of your coin (bitcoin ETC).
Adoption is on the move but dont let your hopes too high because we know on whats Bitcoin when it comes to anonymity and decentralization which is primarily the big cons or
that do opposes centralization on where governments do prefer.This is why we do really see some do accept crypto and some do totally ban it and we cant changed those kind of decisions
since each leader will really have different approach towards it thats why its impossible to expect about full adoption on worldwide scale but somewhat we are seeing that theres
really a progress when it comes to recognition but to point out that this will really just remain as an alternative.