That is not going to happen in our life times!! There are to many older people who do not trust much, let alone something they can not see such as Bitcoin. There are also to many money hungry people out there who are not willing to let the money from bank fees go away.
to be honest anything is possible in my opinion and bitcoin can makes banks disappear in the future
That's true in this earth there's anything is possible and bitcoin can't really banks disappear but they can be partnered in business if they want too that bitcoin can be deposted into banks as investment just saying if this happen in the future then much more better IMo.