It is interesting if talking about the use of cryptocurrency in the worldwide. If considered as one of the global exchange manner, it can be because it is different as the fiat bank that must follow their procedure. The crypto is sometimes anonymous and can be used easily and widely around the worldwide exchange. However, to be used in some payment transaction, there are still limited companies accepting.
It will eventually get close to this, I mean it won't be all the time and everywhere but it will get popular online for sure. All online shops will either have crypto payment systems or a way that they will get paid in fiat but you will be capable of paying in crypto.
The trouble begins on brick and mortar stores, bitcoin does not have a card (I mean there are card companies like coinsbank or xapo that allows you to get one but its a pain to get one when you are living in a third world country) so we need to figure out a way to make that in hand payments easier to get the adoption rate of making crypto a universal means of exchange. I believe we have a huge potential since Bitcoin is not any countries money but all of ours and we are the owners of it so we should be capable of using it anywhere around the world.