I do not see crypto totally replacing fiat anytime soon. Besides the concerns we are too much used to fiat to rapidly replace it. I rather imagine a co-existence here

that is impossible, crypto cannot be accepted as a fiat currency because the value is too high and the value can go down anytime.

I think replacing fiat into crypto is really a hard thing, but in a slow way maybe people well slowly adopt this kind of payment change in the near future. The crypto is now slowly becoming more popular like 30% of the world today is now aware of crypto and 70% is still didn't even know it. Internet is really depend on the place and it is also limited to those who are living on the mountainous place maybe they don't used internet because and for some other people who can afford to buy gadgets maybe they didn't know this crypto exist. So I think it will run a decade or many more years for crypto to be use as fiat.

Although it will never replace fiat, it can peacefully coexist with the traditional money. I suppose that those people that stay online most of the time would prefer to use exactly the cryptocurrency.

I think replacing fiat into crypto is really a hard thing, but in a slow way maybe people well slowly adopt this kind of payment change in the near future. The crypto is now slowly becoming more popular like 30% of the world today is now aware of crypto and 70% is still didn't even know it. Internet is really depend on the place and it is also limited to those who are living on the mountainous place maybe they don't used internet because and for some other people who can afford to buy gadgets maybe they didn't know this crypto exist. So I think it will run a decade or many more years for crypto to be use as fiat.

Personally, I will never see this happen. Crypto will exist but fiat will exist as well. They will co-exist because they have different features.

We both need fiat and crypto. In my opinion, we can reap the benefits of both crypto and fiat so why any of the two should disappear?

Although it will never replace fiat, it can peacefully coexist with the traditional money. I suppose that those people that stay online most of the time would prefer to use exactly the cryptocurrency.