You can imaging that if some 'third world countries' become a 'Bitcoin standard' monetray system , and show the Bitcoin savings address, what will happen?
Bitcoin will not be issues over the maximum supply ,and nobody can make a 'fake bitcoin'. These country need to save x bitcoin to issue their monet, they will have a healty economics system, the other countries will happy to keep their money and want to trade will them.
People won't be afraid of inflation , and the prices will not go high in a long cycle times.
Besides these positive points, it is certainly not a stable and peaceful country. why? because no country wants to hold or trade currencies that are always highly volatile and manipulative. That is also the reason why many governments hate crypto in general and bitcoin in particular. they are afraid, they are afraid that people will detect this "decentralization" and then carry out money laundering or manipulating operations that the government cannot control. For the financial world, it's one of the worst things no country wants.