I don't know of other but I have read somewhere online that El Salvador included Bitcoin literacy in their national academic curriculum for students at all levels. Bitcoin adoption in El Salvador is just beyond investing in it. The leadership of the country has made efforts in making sure that the people of the country are Bitcoin literate. And investing in education is the way to make sure that the future of the country in Bitcoin is sustainable.
The way El Salvador is moving the country forward by adopting Bitcoin is the only strong step, because the textbooks must be teaching children about Bitcoin from a young age so that they can learn about Bitcoin on their own. El Salvador has become a country that is moving towards success everywhere by adopting Bitcoin and all countries are following their Bitcoin adoption.
El Salvador is working hard to educate its people, because if its people are educated about Bitcoin, they will be able to play a greater role in holding Bitcoin. In this way, El Salvador has taken a significant step to make the future stronger and more robust.
Before we can always see countries decline the idea from investing on Bitcoin its because some of those countries call it as scam, volatile risk and afraid of global pressure brought up by some institutions like IMF that threaten them that they can't borrow money if they would engage to invest on Bitcoin.
El Salvador stand firm on what they believe is right for them. That's why right now they manage to earn good results together with gaining global recognition to lots of country on the world that looking after on their Bitcoin adoption made.
El Salvador would provably gain more success if Bitcoin will succeed to gather more global support and demands.