And what countries with the problem of the economy are you talking about. If for example these are African countries, then there is not everywhere an Internet to use cryptocurrencies.
I don't think at the moment we haven't talked about any country. however, we are only talking about the potential of bitcoin that can be used to fix economic problems in a country. if that happens to individuals, or organizations, then that can also happen to a country. only, until now there has never been a state that tried it. so far they have only supported the development of this technology.