We still need the bank to convert bitcoin to fiat. There are still merchandize we cannot buy thru bitcoin, so we need to convert. Without the bank, this cannot happen.
Great thinking and that is correct. I do that also using those banks as a mean of exchanging my bitcoin in fiat.
Bitcoin is great but those banks also have a use in different countries that is why they are there. No need to make it disappear just join it.
it can still disappear, like change form
Because if i can virtually do everything i want in bitcoin then why would i need fiat?