Since this is Unkillable And Unstoppable! they should adopt it as soon as possible because they are the only one we need I mean we need their positive statement and their acceptance of the cryptocurrencies so that we can see a massive movement of the price today.
After this statement, we hope that there will be more positive view of our very own bitcoin. in the near future, we can see a positive impact about it and the price will no longer struggling to get to $15,000 anymore. it will soon to reach $20,000 if they're just honest with one single positive statement it will really affect the price in a positive way trust me.
The best thing any country can do with bitcoin, is legalize it as parallel legal tender. This way merchants would be allowed to receive bitcoin or fiat, and pay wages in either.
Tourists for example wouldn't need to bother with bringing money and exchanging it anymore. Sooner than later bitcoin will become world's currency. Today several countries don't directly accept USD, for example, because its associated with USA. Bitcoin is associated to, nobody, therefore no country has any political reason to reject it. We can replace USD with EUR, RUB or CNY, same logic applies.
One of the major obstacles for adopting a world currency is always what country or group of countries are behind it. Well, with bitcoin that discussion doesn't exist. I wouldn't be surprised if someday the UN endorses it. Worldwide opposition is minimal, a mere 15 countries, and these will probably reconsider their mistake (after watching the wealth go to their neighbors).
Trump may think America is invincible, but he is quite wrong there, his policies can hurt her badly. To Bitcoin i wouldn't matter if they ban it (the world will route around it), which i don't think it would go well with the various States already regulating it, so i don't think it will come to pass. It is nice they have a good debate in there, knowing some politicians do know the subject gives good hope.
I think the Unkillable/Unstoppable comment is far more worth than Trump's "I don't like it". Besides, many new technologies people may not like at first, but they get used to it. Digital cameras, electric cars, smartphones, you name it. We can go to the past for several technologies that came and went with the exact same sentiment coming (mostly) from the same age group.