Your argument here makes it sound like people are using crypto for practical applications on a scale approaching banks. If that was the case I would be far less skeptical, but, aside form a few enthusiasts that make crypto transactions to make a point that "people use these" I don't know of anyone that uses crypto for practical, everyday financial transactions.

Can you provide me some evidence that people are using crypto at a large scale, and that that scales in increasing in a way that it is anywhere near competing with banking services? It seems that even after a decade of enthusiasm people are still mostly "investing" in it.

yes but that is a use. bitcoin is useful as a savings technology. that is how monetary technology should work, especially at first