Many people opinion is bitcoin to became their own country currency,because they are the early adopters of the bitcoin.Most of the people wish the bitcoin to became the world currency like the USD.The world economy will not run without the US dollars,because the USD was the mode of payment to import anything from the United States.So we should have the dollars as our Reserve in their country.Nearly seventy percentage of most of the country population holding the bitcoin as their assets and investments.So as compared to the polygon,Bitcoin and Ethereum had huge opportunities.
They can keep trusting whatever they want to but that doesn't mean that they will change it, I mean countries already have their own currencies and just because a few million people liked some coin doesn't mean they can change it. Bitcoin is the biggest coin ever, and even that had only 200 million ever invested, not actively, but some thing there will be other coins that will be accepted as currency for a nation?
Absolutely not, not even bitcoin will be like that, you need 200 million all in a single nation to make that happen, well depends on population of course, if its less then that would work with less. All in all there is no scenario where polygon is ever nation currency, or any crypto could be national currency, legal tender at best.