Some government have no choice but to adopt the cryptocurrency in their economy so that they can take benefits from it through setting taxes from any crypto-related transactions.
But still they chose to not accept crypto above all, that's why banks experience crisis and crypto is not that affected. If governments are including crypto in their banks, people will surely try to invest and engage in this improved system in their economy. We all know that China is really good in terms of businesses related activities so probably they will not let their banks to become bankrupt, they have a huge economy.
Why some governments needs to adapt it? Banks can bring more income to the country than crypto taxes that is why government supports banks more than the cryptos and the reason for the crisis of banks are lead by the world's economic crisis and it affected by many factors along with covid 19.So people lost the trust on banks and converting their savings into hard assets.