In the old age,few centuries ago people uses some money system which is called Barter system to buy and sell their products.This system works like exchanging their products between two people when they are in need but they realized that that system has flaws and not suitable for everyone since if there is no demand for one's product he can't buy anything he needs so later they moved to currencies (paper money) until now people uses this as their main form of payment but in digital format but people needs to understand that this also has flaw of centralization so we need to move to the decentralized money for better life.Lets get update ourselves to use the crypto currencies.
You're driving people to a misconception and are making them think centralization is bad, its not. Crypto isn't the best form of currency, FYI. Fiat is, no matter what, for now. Crypto isn't a replacement for fiat, the crypto markets are way too volatile for them to work on a nationwide currency,and being on a specific nation's favorite.
People just didn't move towards paper currency, people have used precious coins and other things as a means of exchange.