There are several cryptocurrencies that get a partnership with the banks such as ripple. Banks so far also support the crypto as the way to deposit the fiat to the crypto world. However, to support deeper or more than it, I think it will depend on each country, whether it is available or not, legalized or not. And then, if it is supported by the banks, will the crypto be more stable? WIll it be centralized? I don't think it is good