Please stop using "crypto" and "fiat" as if they were opposites. "Crypto" is just as "fiat" as any Royal Mint; it's just that the fiat-ers[1] are different people. They just want to muscle in on the "make the tokens that everyone else's transactions are counted in" business niche, because they reckon the makers can always somehow skim a bit off the top.

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[1]: lit. "makers": "Fiat" is Latin for "let there be made", a form of the verb "to make". It's a cognate of modern French "faire", Italian "fare", etc. (Related words are "fact" and "factory".)