i do not think so that still there is any kind of bank our any other bank yet consider bitcoin as legal currency. but hope that a time will come when banks will accept bitcoins.
Banks will never accept Bitcoin, every user is a bank.
And yes, Bitcoin is a legal currency in some countries, however banks don't want to deal with it because Bitcoin can break the banks.
No banks accept bitcoin. As a matter of fact if you to buy to bitcoin in banks you deposit money to have you in your wallet. And also when you cash out your bitcoin you need banks to convert it in real cash. So I wonder how you cash out your bitcoin in your country without any using banks.