As we can see the cryptocurrencies are still being established in the knowledge, socialization and full utilization of humanity, could the cryptocurrencies cause the use of physical money to be eliminated, is this possible?
The state in the future will be able to switch to the use of non-cash money. For example, Sweden plans to completely switch to non-cash money by 2023. The state with a highly developed economy and a high income level of the population can do it. It will be much more difficult for ordinary economies and is almost impossible for countries with a weak economy. Among non-cash settlements, there can be used crypto currency. Crypto currency can be used only along with national money. It can not be used as the main currency of the country, since in this case it can disbalance the economy of any state because of its high volatility.