So many countries are beginning to adopt cryptocurrency in different forms for trade as legal tender, either as part of measures to curb inflation or aid unemployment.
I think you are misunderstanding the concept of Bitcoin as a legal tender and Bitcoin as a currency. Bitcoin as a legal tender entails that the country has recognised and nationalized Bitcoin as an acceptable means of payment, thus Bitcoin has the same status like the country's currency. But when Bitcoin is accepted as a currency it means that it can act as money which can be used as a medium of exchange like other currencies like USD. Only two countries have adopted Bitcoin as legal tender, while many countries accepts Bitcoin as a currency.
Bitcoin adoption is not the total solution to a country's inflation but citizens can exchange their local currency for Bitcoin to shield or hedge against inflation during recession or currency depreciation. Bitcoin investments has the tendency of creating jobs but also these jobs might not lead to massive job employment. Infact, inflation and unemployment are some of the factors that can limit Bitcoin from striving in a country.
El Salvador, Singapore, Central African Republic, Nigeria, are examples of countries who have adopted this advancement in monetary systems.
While others made trade or mining on Binance or other alt coins possible, an idea of digitizing the money in ones account was made available to ensure more possibilities to bring those unbanked into the digital economy of cryptocurrency.
El Salvador and Central African Republic are in the same category because Bitcoin is a legal tender in these jurisdictions. Singapore is more friendly to Bitcoin than Nigeria where there are strict restrictions on Bitcoin transactions. Bitcoin is a very good tool to enable the unbank gain access to cheap and reliable financial transaction opportunities.
The Nigerian Central Bank of Digital Currency, CBDC is a recent technology, in which it is predicted that the use of cash/fiat will be dissipate to zero as it becomes part of our lives.
The Central Bank of Nigeria's issued Digital currency eNaira is not in the same class with Bitcoin. The currency was created to compete with Bitcoin. The CBN thought it could be used to discourage Nigerians from investing or using Bitcoin. But the eNaira attracted only 270,000 active wallets usera in one year compared to 33.4 million that have used Bitcoin in 6 months. The eNaira would only promote online transactions and make the economy cashless but don't also forget that it is just an online fiat .
Is it possible to dissipate completely the use of cash? What plans should be put in place to bring to speed our aging folks who have little or no orientation about the advent of the use of crypto currency? Is the emergence of crypto currency a revolution of cash/fiat?
There are so many factors that can speed up the adoption of Bitcoin. The spread of Bitcoin education, low illiteracy rate, reduction in the rate of poverty and infrastructural development would be positive to the growth of Bitcoin. People must be able to meet their basic needs, have access to electricity and internet facilities for the to be able to be interested in Bitcoin. Hence dissipating fiat might be fast in developing nations, while emerging economies might catch up later.