The bank may disappear, due to the spread of bitcoin. Most people use bitcoin and often the bank is unnoticed. There are only two differences between them. Bitcoin is the only money that you hide there is a possibility to increase due to its increasing cryptocurrency value. More precisely compared to the bank that often scams and scams credit in bank accounts. So the bank may lose if they do not fix the security that should be deposited in their bank. In bitcoin you're confident because you know you'll find it harder to scam anymore.
You are wrong. Banks will never dissappear just because of bitcoin awareness. There are things and services that only banking does have compare to what bitcoin ca give to us. You also wrong that you are confident because it will not likely to get scam in bitcoin. Remember that to truly used bitcoin in it's extent and usages, we must used the services of exchanges. Because of that it was have the same idea of using banks.
Im using banking services for long time now and a bitcoin enthusiast. If you know the differences and advantages of using them there will be no room for comparison here.