Simply put it as well as why do people still pay in fiat money even if there are bank cards that would conveniently pay bills and almost anything from a store. Even though banks put fees on those and Bitcoin doesn't,  it still does almost the same thing.
Even the government would still choose banks most of the time, even though some legalized Bitcoin in their own respective countries.

Many institution and countries scare if bitcoin become legal payment currency and replace bank function, they try every time how to make bad news with bitcoin, we know United State country become most hater for bitcoin and scare if bitcoin most payment used there, so they have not allowed United State for using and investing in bitcoin or altcoin.

They wont, which is why there will always be banks and there will always be fiat currencies, governments even if bitcoin grows exponentially from now on are never going to let go of whatever power they can get with those institutions, however that is not a problem at least to me, as long as we can use our bitcoin freely almost everywhere then I will be satisfied, and that is slowly becoming a reality as people are realizing the potential that bitcoin has not only as an investment but also as a currency.

What are you saying? who told you that United States prohibiting their people to Invest and use bitcoin ? you are an obvious shitposter that  only post without any sense at all. 

Do you know PayPal? the most  popular Virtual payment method in the US is now having partnership with Bitcoin.

and many more companies and institution that is now investor of Bitcoin.

At first place, Bitcoin isn't created to eradicate those banks because lets be honest Banks will never be replaced by anything.

There is no way for a coin that isn't being used by all of the people, a coin that isn't accessible for all, a coin that only those who have smartphones can use, a coin that only a few people around the world will replace those banks. I see Bitcoin as an alternative way of transferring funds rather than it replacing banks.

One thing more is that, Bitcoin and banks have many differences. We see Bitcoin as an investment while we see banks as a storage of funds whether it is an emergency or wedding or anything (at least that is what I see with banks). Another is that, why are we debating about this even though we know the fact that it can't.

As far as I know Bitcoin wasn't made to replace the banks. It was actually made to remove the limitations that banks provide. And yes bitcoin has a lot of advantages over bank but that doesn't mean it can replace the banks in time. And after all, our respected government won't allow it to happen due to the fact that it will be out of their control. So it is way far impossible.

I saw this topic a week ago and was just about saying something and before i knew it, procrastination got the better part of me!

When i saw the topic, i just knew it's a mirage, a common misconception most of we crypto enthusiast often have because, we've become so sucked into the tech field that we don't seem to see the relevance of other means of doing things that isn't tech based or related. As much as we enjoy having things done by clicking a few buttons, the real life isn't online, its right around you!!!

First, i'll like to ask this;
Is bitcoin a currency or structure? Same goes to the bank.
Are the banks a currency or structure?

I know bitcoin to be a currency while the bank is a structure comprising of a network of persons that manage affairs of currency and valuables. That's just my simple interpretation of them both and there is a lot of difference if you could look at it from this view point.

Being your own bank with regards to bitcoin and altcoins alike simply means being in charge of your own currency affairs, it doesn't necessarily mean your a bank or makes bitcoin a bank. Your wallet could have better assumed that position with you as it's staff (sorry, i just have to put it that way).
But then, fiat is still very necessary and banks will still be printing that which makes the existence of banks inevitable coupled with the fact that, a country's note as per currency is a symbol to that country so, it not being in circulation is a wiped identity for such nation and we all know that isn't going to happen.

Bitcoin and fiat is here to work together and nothing is replacing the banks. Banks adopting cryptocurrency is the best we can expect to happen and not the other way round.

It can say that Cryptocurrencies are not banks, as it were fiat can be compared to cryptocurrencies, and we know how bitcoin and a few other cryptocurrencies are way better as an appropriative resource in the event that compared to fiat that are inflationary and subjected to depreciation, particularly in third world nation. Banks are associations where fiat are spared, but keep in mind that you simply can spare your gold, silver and jewelries in banks, which implies a plausibility for banks to moreover acknowledge crypto as an resource to be spared with them and give a care benefit for it

Dude, why do we need to know whether Bitcoin can/cannot replace banks? I think Bitcoin doesn't need to replace banks to survive in the world. I also believe that Satoshi didn't create Bitcoin to replace the banks. So, it is already quite good to see Bitcoin available to use as a payment tool in some countries. It is already a good achievement, isn't it?

In general, there are two options for development:
1) The goal of the same banks is to exclude cash payment from circulation, for this banks will use BITCOIN in the future, because even now BITCOIN provides banks with a service that people eliminate cash in favor of bitcoin. The main reason here is that BITCOIN is more manageable than cash, because BITCOIN always leaves its mark on the network, while cash is more difficult to track.
2) The use of BITCOIN by banks in order to withdraw money from a person, according to the principle of a financial bubble.

Moreover, it is more possible to develop these two scenarios together.