an example is a country has fully adopted crypto and they released their own stablecoin. they also legalize some other big crypto coins like bitcoin, ethereum, and some stablecoins like USDT or DAI. and you become one of the citizens of that country. which one will you use for daily transactions. stablecoins issued by your country's central bank, or mainstream crypto coins like bitcoin. or privately released stablecoins such as tether. or keep using cash because you are used to it. and give the reason why you chose that coin.
Depends, maybe there are situations that really calls for CBCD to be used then I will used it.
But bitcoin and others have their own purpose, I mean it's borderless, so maybe that's the time that you need to used it, whether you want to send or received it from someone, like love ones across the globe.
The good thing is that you have options now, and it's up to you which one fits you better, CBCD or crypto or fiat.