The coins have failed at the moment because prices have crashed. No one was complaining about coins failing when prices were soaring.

I guess I needed a /sarc tag. The coins aren't failing. And I'd disagree that the success or failure of a cryptocurrencies isn't directly correlated with "price".

No one who was holding coins was paying attention to anyone who was telling them that the coins had failed. Do you remember 'have fun staying poor'? It was used to shut up anyone who said anything critical.

The coins failed because exchanges shouldn't even have been created in the first place. Bitcoin should have been as easy to use and ubiquitous as the US dollar. As we all know, cryptocurrency turned into stocks instead.

If not exchanges, what entity would you suggest as a way to change crypto into fiat?

Using the most successful fiat currency the world has ever known as a goal seems a bit lofty. In your view, how much time should it have taken to have been successful?

That's my point. There should never have been any need to exchange crypto into fiat. Bitcoin should have been as ubiquitous as USD. Everyone using it, pricing things in it, transacting with it, holding at least some amount of it. Exchanging for fiat should have been as easy as getting change from a store.

Like Athena, it should have been birthed as a full adult wearing armor.