Cryptocurrencies have a valid but very specific use-case: being able to transact in a hostile environment. It does so by making certain trade-offs such as an energy-intensive verification process.
This is a very valid use-case when you need to transact against the will of a powerful adversary such as governments. It needs to be there and needs to be protected just like free speech needs to be protected.
However, day-to-day, if you're making transactions that the government approves of, it's better and more convenient to rely on said government to protect you and end up using a much more efficient (in terms of transactions per second, fees & energy usage) and convenient system such as credit cards.
Crypto is like a tank - useful if you need to go into battle and defend yourself, and while it can be used to go buy groceries at the mall, it's not the most convenient. When you're not in battle, you're better off just using a normal car and relying on local laws and subsequent enforcement to deter anyone from harming you, which, at least in civilized countries, works the majority of the time.