If you're referring to companies direct, then you're wrong cause there are lots of exchanges these days and all of them functions with banks. No cryptocurrency exchange can function without having a bank account, if there is one, the mention it! None. And if you mean in terms of crypto companies providing bank services to individuals, then you're also wrong cause there are lots of wallets that serves for the same purpose as of banks. You can send money through crypto wallet and you can also receive. Then there are some offers debits cards as well, the only difference is that crypto users are meant to stay anonymous.
I think there were selected online wallet services available in a specific country, that offered direct bank transfers using crypto towards fiat savings. Hopefully all countries who has no conflict with this type of systematic approach, will acquire desired plans for the future. Precisely were all bounded to look forward in terms of adoption drive through so banks will soon be accessible of crypto transactions.
if indeed, as you explained, it means that in that country legalized bitcoin, so that the bank can transfer the crypto currency directly. but unfortunately there are still a few such countries. of course there is a government role in it