[rswail]

There are some merchants in some places that accept crypto currencies in exchange for goods and services. So yes, saying that none do is "strictly" false.

The question though is are there any merchants that provide, on a wide basis, to numerous consumers, goods and services that are paid for by crypto.

Essentially the answer is no, because most merchant supply chains require fiat, governments require all taxes to be paid in fiat (that's why it exists).

So there is no "crypto" world where I can go live that entirely uses any crypto currency as its medium of exchange.

All of them require conversion to/from fiat, because that's what the world/governments/taxation/laws are based on for value exchanges.