If Bitcoins were introduced in banks, there'd be probably a different protocol made by banks if I'm correct? What would it be like?
I think it's the same as exchanging one currency for another, like exchanging a dollar for Bitcoin. Nothing else can be done at the bank. For such manipulation, the bank will earn its own percentage of the transaction.
Banks will be forced to provide services in cryptocurrency, including Bitcoin, but they will not use Bitcoin in their own activities. For this, banks have a ripple coin, more suitable for this purpose, and they have no reason to switch to using Bitcoin, which is not intended for this.
I totally agree! I would like to add that the bank is only a currency exchange office or it can be said that it acts as an intermediary for legal transactions: a person-bank-person (organization)