Crypto can facilitate truly decentralized money, and although that hasn't truly happened yet, I would argue that is a feature. Does society want that and would government allow it? I don't know
What is the benefit of decentralized money, other than it makes crime easier?
I haven't yet heard a solid general case for why decentralized currency would be an improvement over what we have now. It strikes me as a solution in search of a problem.
I think until the reality of an actual, true, cashless society happens, Joe Averageconsumer isn't going to be interested in decentralized money.
When and if that happens is anyone's guess, though.