Bitcoin has many things to do with the current economic situations in different countries,some of these what bitcoin has done to the economic of many countries are -
first of all it provide employment and source of income thereby regulating the unemployment rate and increasing the efficiency of the economy.
secondly bitcoin could have hep many countries if they would have acquire some and make it a legal tender years ago.
thirdly it reduces crime rate in some countries because the reason for some of these crime is unemployment.
And lastly bitcoin rescues many families and individuals get rid of poverty thereby increasing the quality of life ,helping businesses,and helping the economy in different ways.
Bitcoin has really help the economy , this is just a nutshell of some notable works bitcoin has done to economy of many countries so i don't really see the reason why the government of some countries failed to make it a legal tender till now even after seeing what it has done to their economy.
I don't mean to spread fud here, but we need to be realistic. The influence of Bitcoin on economies is multilayered. It creates jobs and avenues of investment, as can be seen in the case of El Salvador, but it is too volatile to be deeply integrated into the economy of any nation. By and large, most Salvadorans have not found a way to introduce it into their daily life, and even its promise of inexpensive remittances has only partly materialized. Full reliance on Bitcoin also opens up countries to the risk of financial instability if they are out of the ambit of organizations like the IMF.
Now, regarding crime reduction, Bitcoin's transparency does not make it a good tool to actually help reduce the level of criminality. The transactions in a blockchain are open to all, which deters a certain level of crime, but Bitcoin hasn't proved to be the silver bullet that some in the mainstream might have hoped for. While it may be promising in particular use cases, such as cross-border remittances and financial inclusion, Bitcoin is not a panacea across the board in remedying all economic ailments in every country.