That will be wonderful if we get this opportunity to get rid of fiat and use only crypto instead of it. The thing is that we can't consider centralised stablecoins such as tether or BUSD as a good substitution, as this way the government will be just replaced by the company that releases these stablecoins, so there will be no difference. Several companies mustn't take the control over the whole financial system of the world. We will need to use algorithmic stable coins and decentralised cryptocurrencies.