I prefer to use cryptocurrency more than fiat because is faster, safer and with the recent spread of the deadly coronavirus you can be rest assured that the use of fiat currencies has several disadvantages. I can't use cryptocurrencies that much for any transaction because it's barely used in my country but i believe in the near future cryptocurrencies would take over the payment system.
Well said, you have your point, when in terms of disaster, cryptocurrency will be better because you won't need to go outside to make a transactions, not like the fiat currency, you are required to go outside to accomplish what you want, especially when virus like corona virus happens on your country, cryptocurrency will be better than fiat because all the transactions that you should need to accomplish everything is through online.
But I doubt that cryptocurrencies would not take over the payment system that we have now in our country because it will be hard for them to do that thing because there are still some individuals who dont know much things about internet or the transactions in the internet, especially those person in rural places.