El Salvador and Bhutan are already into it but there are government agencies who are accumulating Bitcoin in masses and it's quite obvious once they hodl significant amount of Bitcoin which can be used to fluctuate price of Bitcoin they would definitely do it just like how whales have been doing it for years now. But, it's not a good sign if government hodls significant amount of Bitcoin as they are not holding it for ROI as they hodl it to have control over Bitcoin as they can never align with concept of decentralisation.