This kind of news is good, but I think you are wrong to equate El Salvador with Ukraine. In El Salvador
Bitcoin is an official currency. On the other hand in Ukraine what happened until now is that there was no regulation on cryptocurrencies and the law that has been passed regulates them as a financial asset but
not as a currency with which you can pay taxes:"
Although virtual assets are now legitimate in Ukraine, Ukrainians cannot use them as a means of payment or exchange for goods or services — only the official national currency, the hryvnia, has this power. However, Ukrainians can own, exchange and trade cryptocurrencies using local or foreign exchange platforms registered in Ukraine."
A step in the right direction. The world is gradually coming to the realization that bitcoin is here to stay.
"In a nearly unanimous vote, the Ukrainian Parliament adopted a law that legalizes and regulates cryptocurrency. The bill was set in motion in 2020 – and it now heads to the desk of President Volodymyr Zelensky." From the afore mentioned statement, doesn't this defeat the purpose of decentralization?
https://www.cnbc.com/2021/09/08/ukraine-legalizes-bitcoin-and-cryptocurrencies.html