Actually, I seldom use actual money to trade. I usually use mobile payment, but I think the actual money will not disappear because a large part of the world still do not understand the Internet and do not understand the digital currency. , They need real money to support their spending.
This is right. The real money will not disappear. The digital currency depends on the internet. If you go to a mountainous area with no network and poor communication, what should you do without real money? We rely more and more on online transactions, but did not expect some laggards to be able to trade numbers, let alone know about cryptocurrencies.