I have seen many people make similar statements as you but I have yet to see anyone come up with a detailed plan, most just speak their mind but they don't know what they are talking about.
Some people want to relate the benefit of Bitcoin to an individual to an entire country. But fail to understand that a nation's economy is bigger and more complex. Bitcoin can only contribute slightly to the growth of the economy of the nation if the government invest massively in it as we are seeing in El Salvador. The country bought Bitcoin at a cheaper rate and is now in profit. El Salvador's friendly policies have also attracted crypto investors and tourists.
I believe that governments have economic and financial experts and advisors, they have certainly heard about bitcoin and taken the time to learn everything about it. They even know more about bitcoin than we do, while we are just pure bitcoin investors and don't have any macroeconomic knowledge. But the funny thing is that people who don't have a deep understanding of finance and economics, don't know how the economy works, and don't know what causes economic weakness. But they like to provide and give financial advice to anyone and even to an entire country
.Honestly, I also want bitcoin to not only become popular worldwide, I hope one day it will play an important role in our economy. But clearly that hasn't happened yet and we need to be realistic.