There should be more countries to legalize Bitcoin in the future. If US government declares to use Bitcoin as a legal tender, I assume there will be many countries to follow it. As far as I know, we already have 2 countries that legalize Bitcoin as a legal tender. This must trigger other countries to do the same way, especially after they know those 2 countries take big advantages from the decision. El Salvador probably becomes one of the rich countries because they also invest in Bitcoin with quite large amount of money.
El Salvador is an example for all, El Salvador is the smallest country in Central America that has been able to change their image by legalizing bitcoin and becoming a rich country with Bitcoin that they bought from 2021 until now.
It was a risky decision but President el Salvador proved that they could be the first country to be able to adopt bitcoin.
If America follows in El Salvador's footsteps, it could be possible that Bitcoin will become more bullish and America will become the second country as a legitimate adopter of bitcoin.
But is that possibly possible? This of course depends on Trump's policy later and Trump has also started to be pro to Bitcoin.