Why the sudden change of heart?
Up until quite recently, many countries were actually quite resistant to the idea of cryptocurrency and blockchain technology. After taking a look at the countries testing digital assets in 2020, its quite clear theyve had a change of heart. This can be largely attributed to the immense success of Bitcoin, a change in attitude towards the digitization of our future in general, and the implementation of Facebooks very own Libra coin. As cryptocurrencies become more accepted on a societal level and go mainstream, its likely that more and more governments will see the almost limitless possibilities that blockchain and digital assets have to offer.
You could call it a change of heart if they legalized Bitcoin, started supporting in on a government level, give it all the perks of a national currency, use it as a reserve currency and so on. So far no country in the world made any steps towards it, maybe except for Japan, which is still nowhere near close to what I described.
The countries will be testing their own centralized shitcoins, and the key word here is "testing" - there's no guarantee that they will go live.