I'm not a fan of cryptocurrencies, nor have I ever purchased cryptos, but even I must admit that cryptos get a few things right, such as cross national liquidity. The lack of regulation to protect consumers from fraudsters, scammers, and other dishonest actors, the untraceability of cryptos like Monero, the slowness of transactions processing (Bitcoin), and the wild volatility (your chicken breast costs $X one day, $1.5X the next, then $0.8X), all conspire to blunt the mass public adoption of cryptos as a practical currency, but these are not necessarily insurmountable problems.
Can we have a digital currency that shares cryptos' liquidity and trans national use that is also stable over the short and medium term, regulated enough to protect the public but not so regulated that you end up with a clunky version of fiat currencies, that can support fast transactions and can be tracked by governments? Something like the PBOC's digital yuan seems like a good first step, even if I'm not a fan of the communist regime in general.