For Cuba, it makes sense. That being said, China is a country that has censorship on the internet, and is secretive. Are they more open with BRICS? Maybe, but can you trust them to not manipulate the yen for there own benefits?

El Salvador is on the right path. Debacle from a nation currency. Bitcoin is accepted world wide, and no nation can stop it. China “banned”crypto in 2021, and it continues to thrive.