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?
Countries won't shift toward public ledger as then all the transactions will be available for everyone to see. But what the central banks can do is to adapt to private blockchain that only the banks can have access to as it will be more secure for them and also for national security. But adapting to cashless systems throughout the country isn't possible as there are many societies living without internet and that will be a big problem to them to send any money in case of digital economy.