If my country has adopted crypto and issued stablecoins then I will use stablecoins for daily transactions. I still hold bitcoin to invest in the long term. I don't want to reduce or spend my bitcoin to buy necessities of life, I prefer to hold it because bitcoin can provide greater profits in the future.
If you transact it is better to use a stable cryptocurrency and do not have large fluctuation movements. It will be the duty of the state to think about it if it wants to replace fiat with crypto. But you are right, it is better to use other cryptocurrencies than bitcoin or even ethereum because if you experience an increase so as not to feel disappointed.