Interesting point youve raised. I think Id be in favor of a global currency as well--- it would sure make life easier, not just when traveling. But I think were headed to this direction, of going cashless, I mean. This is the point of having virtual currencies, right? And Im actually seeing more features in altcoins now that seem to have the structure for it. With more cryptos now exhibiting more features that make them efficient financial instruments, we could eventually use it for pay for everything a bag of sugar to even a house! Ive been reading up about Virie. According to its whitepaper, its a virtual marketplace with an easy-to-use cryptocurrency feature. I think it gives us a glimpse of what going cashless would be like. Looks very promising.
https://virternity.com/viriehttps://hubpages.com/technology/Virtual-Currency-For-A-Digital-Being