Some of them opt out of more environmentally unfriendly stuff like Ethereum for sure
Personally I've developed systems for paying for everyday things like your bus fare or phone bill using crypto in a country where there's a hell of a lot less confidence in fiat (Brazil) -- hell check out the history of the Brazilian Real if you want an idea of what real candycorn money looks like
Personally I just feel a hell of a lot of privileged bullshit out of people arguing that crypto is some good for nothing shit. Yeah sure great try living in a country where your government is fucked. We truly don't live in some francis fukuyama neoliberal fantasy world where we can trust stuff like traditional financial markets which have gone and failed us in the non english speaking world time and time again. I welcome any and all alternatives