Now that more and more countries are starting to go cashless (
http://www.bbc.com/capital/story/20180427-does-a-cashless-society-benefit-everyone), is it possible that we also start converting to cryptocurrency? If that happens, what do you think are the advantages and disadvantages? Paying virtually is very convenient for me as I do not have to bring cash and it prevents petty theft but what is the disadvantage?
If all countries are switched to using cryptocurrency, trade exchanges will take place quickly and more smoothly nowadays. Just have the Internet as you can buy and trade with anyone around the world. However, as I repeatedly mentioned, cryptocurrency still exists many risks and has not yet been able to fully control so the idea you mentioned can only be in the future.