Of course Bitcoin has its own banks yet. But it would be more told more precisely that future Bank system will use blockchain technology. Maybe it wouldn’t be a banks eventually. No commissions, no institutions…

anything can happen if a society starts to no longer trust the conventional currency, then people will switch to the currency that was then widely used and easy in transactions whose value was very high, maybe it could happen next 30 years

Bitcoin will not take over banking but will definitely make banking easier and work hand in hand with banking processes. I doubt it would get rid of banking all together.

This is certainly because bitcoin is showing a lot of advantages that banks can not meet the customer but with bitcoin, these things are resolved quickly and safely.

Currently its look like so but in future when banks will also accept bitcoin as legal currency the we can expect that banks will also start accepting bitcoin and epeople will be using bitcoin for transaction through banks. i am hopeful that it will happen very soon, because most of the governments are now thinking about to convert bitcoin as legal currency. Because bitcoin is the future of all the currencies and in moder time we are expecting that all the people will be giving more preference to online currencies.

No, I think it will not replace the fiat, the government will not approve it because of the lack of control they can get with Bitcoin. but I can also be wrong, anything can happen in this weird little world *

Cryptocurrencies are unique innovation having potential to revolutionize the current economic structure and change the system of intermediaries and financial institutions.Bitcoin is most popular and leader of cryptoworld which enable to make digital transactions between two parties without any intermediary it is too fast and safe way as well.All the transactions are recorded digitally and keep security on top level,information of parties also not revealed but money can be traced once it converted into cash.
This way of transaction become more popular and people attract from it in near future it is possible to become common and traditional bank start a section where transactions done by Bitcoin.

institutions are slowly entering the world of blockchains. The banks in my opinion are slowly buying large amounts of bitcoins so you can also earn them from a new payment system.
Ethlend, for example, is a system of loans linked to cryptocurrencies. This is a very large system of cryptocurrencies with huge amounts of money

I wouldn't say Bitcoin is the future of banking but I'd rather say blockchain is the future technology that would be adopted in the banking sectors. And there's possibility of altcoins dominating banking transactions later in the future because of the speed in the transaction.