There are many cryptocurrencies that allow anyone to move money quickly, cheaply, and on the same day in less than a minute and requires zero bank accounts.
And which are trivial to convert back and forth between real money and cryptocurrency? And hold their value with sufficient stability that you can convert USD into the currency, make a transaction, wait a few weeks, make a transaction the other direction and then convert back into USD, with roughly no loss in value?
They essentially are to me, because I don't know how to differentiate them. Before the collapse, I would not have been able to look at the ones which collapsed and the ones which didn't and predict the outcome.
USDC operates as a fiat-backed stablecoin and is fundamentally different [0] to an algorithmic stablecoin such as UST which was the one that collapsed in 2022.