It's a really interesting question as blockchain technology is widely spread in the world nowadays.
Why some countries ban or don't accept crypto at all?
What's your opinion?
I think many countries are adapting to blockchain and cryptocurrency
If you see facebook is coming up with their join.. JP Morgan too.
Pakistan govt recently said that they plan to adopt to crypto,UK and US Royals quote, Tech tools and Blockchain Can help to fight against slavery and Human Trafficking,French insurance markets can now invest in cryptocurrencies/tokens, says the new bill etc
For sure most of the countries are hostile towards privacy-oriented cryptocurrencies. And probably sooner or later they will ban it.
The reason is simple - if transaction cannot be tracked, there is a chance it can be used for some illegal activities or avoiding taxes. And if such chance does exist - it should be banned.
Another reason is pretty simple - many people who work for different authorities are often not the people who are up to date with latest technologies.