With every passing day, we have been seeing more and more institutions and governments becoming forthcoming on the crypto scene. So, what do you think, which countries will take the adoption on a national scale and why?
It is necessary to put your question more specifically. What do you have under the national adoption of bitcoin? If you mean simply the legalization of bitcoin by states, then the overwhelming majority of countries will legalize it, that is, they will determine its legal status, and also legislate the order and conditions for its circulation in society. However, no state will ever actively support bitcoin, let alone secure the status of a national currency for it.
Though his question is a bit vague and wasn't specific, but I guess what he's trying to point out is which country probably have the most Bitcoin adoption as a result of institutions and government's influence towards the individual investors. Though it could also mean involving the government's decision and views towards Bitcoin. And If he means Bitcoin or other crypto as a part of the national currency, then I can say we're still far from it.