I think this is the real big problem, how can it become a real exchange currency if its owners hold it as if it were an asset? If you don't spend and move funds, it will inevitably take the place of any refuge property and this is not the right path.
An even more real big problem is that cryptocurrencies are no longer worth as much as they were worth some time ago, and here a really paradoxical situation turns out. Those who do not believe in the future prospects of cryptocurrencies try not to keep them for a long time, and those who believe in further prospects keep this asset at home. And yes, people use cryptocurrencies according to how convenient it is to use them at this time. And at this time, cryptocurrencies are much more convenient to use as an asset, and not as currencies, because in this situation cryptocurrencies are by no means a competitor to traditional fiat currencies and I don't see any reason yet when normal states will give preference to some other people's cryptocurrencies rather than their own banknotes.