Do you mean like replacing the gold reserve? US is still conservative about bitcoin although it's not closing its window to it but I think we're far from seeing bitcoin as the world's standard for most currency to all countries.

But let's just settle it that bitcoin is in another market and cannot be mixed up with the traditional one. The good thing here is that these countries despite with those conditions, they're able to recognize bitcoin and are no longer ignoring the market and value that it has.