What is a “country”?

If you mean the armed gang of parasites that lives entirely by looting the productive individuals on their giant Animal Farm, and calls itself “government”, they are already “on board” milking Bitcoiners.

That’s why they haven’t banned Bitcoin.

If “country” is a group of productive individuals claimed as their livestock by the gang above, it doesn’t matter how many onboard to Bitcoin for it to be valuable or useful in general.

Few are on board with gold in your country, but no one is giving it away for free millenium after millenium.

Makes no sense as a concept to fit in with any group that uses a certain currency.

No need to struggle with it either, because no one is forced to use BTC - unlike CAD, et al.

Bitcoin is not meant to be profitable, because it’s money, rather than a cashflow asset.