Today, banks also use the money in the form of physical and digital. Therefore, banks are already operating in the future. A bitcoin does not have the capacity that has the bank, and even more will not be able to provide the same services as the bank.

Yes it would be a dream to expect something like this for the next 5 years. But a country like Liberland has accepted bitcoin as its official currency. It would be funny to wait for developed countries to accept such a thing.
But with technology everything changes and changes very quickly. After 50 years, maybe bitcoin can be used by half of world population.
States may have accepted bitcoin. 50 years is enough time for such a thing to happen.

I think that's far from happening. Just imagine how many bitcoins are there, and if billions will be sharing it, then everyone will be getting a few thousands satoshi. It's not that the state wants something that they control, but it's all about the ease, and what's good for their economy. Bitcoin could help the economy, but as a currency of a certain country, it's hard to happen, but in banking, it is possible. 

I do not think bitcoin can destroy the banks. People do not change their habits easily. They also trust the bank too much. If the bitcoin starts to be used by a few billion people around the world, the banking system could end up.
But the states will not allow it. States always support systems they can control.

in fact it is not possible in present time. because almost all the people of the world are using fiat and the user of bitcoin are still very low. i think in future when the users of bitcoin will increase then it may become possible that the use of banks will decrease.

I do not think the bitcoin can let banks disappear now.But the banks may disappear in the future not only because of btc.

As long there are government banks would not disappear since banks do really need on an economic activity even how bitcoin would progress it can't make banks disappear it would be still there no matter what.

Bitcoin doesn't offer the average joes what they want in order to fully adapt it at some point. Here are some reasons;

# Bitcoin isn't a suitable currency for daily purchases due the fees that are likely only to increase, and of course don't forget the confirmation times.
[1]# Bitcoin at all times requires you to be connected to the internet.
[2]# Bitcoin is subject to the volatility.
[3]# Bitcoin can't handle mass adoption.
[4]# Bitcoin is a decentralized incentive, which the average joe type of people don't feel comfortable with as they are used to have the government as central authority.
[5]# Bitcoin is too complicated for a lot people.
[6]# Bitcoin has almost zero merchant adoption if you put it against how other payment services are being accepted globally.

And there are probably a few more things... Long story short; Bitcoin is just an asset as Gold, but then with a far better usability. Gold 2.0?