If the US starts buying it, my country might follow suit. Probably right away and for no other reason than that its former colonizer is doing it. I don't know how many countries are like ours, but it seems the US is being constantly referenced when decisions are to be made locally.
I feel like my country would too. We always follow every thing The United States does no matter how stupid it is. I suppose a bunch of other countries would follow blindly if it worked well with The United States. Particularly if a significant move of Assets toward Bitcoin would become worth hundreds of percent within years. It would significantly impact their holdings in a positive way. And that is definitely something to follow.