The intention of BTC is not to make a financial institution disappear. It is there to improvise newer functions effective for the customers. Hence, they would not function as they do now. Rather it will help them to create a new fiat structures for newer banking procedures that will be financially beneficial for their cutomers.
I do agree with you. Bitcoin is just here to help us make other ways of transacting money or goods. as an example of it is transferring funds without charges, buying cellphone load, and others. Banks are still important as they regulate fiat money here in our world.
Also, bitcoin is not accessible to everyone yet. there are still constraints that hinder the use of it like technology. There are still places my country that don't have internet yet.
