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?
Simple. We will be doomed. It's not that convenient to have all transactions made digitally, In fact, not all people has the access through the internet and has the knowledge to use machineries in the current time. Fiat will still be needed even if the digital money will come to its time to maneuver the society as well as the economy...
They don't even understand what is this crypto thing.
Yes, Indeed. Not all people nor countries do understand how crypto works, even if you think a little step forward the possibility to accept crypto and replace Fiat will still be impossible.