Soon the banks will be of no use if bitcoin becomes popular and worldwide usable..
If Bitcoin starts being accepted in a large number of places, and if most people adapt to it, this can happen. But I would not say it will happen soon. The adoption of a technology like this, by the majority of the population, can take many years, maybe decades...
Yeah it will takes many generations for people to begin using and accepting bitcoin because fiat money still plays a key role in most people's lives and it's still the factor which influences a country's growth. So it's quite difficult for bitcoin to take over the place of fiat currency in just a few years like right now, I hope this would change sooner or later.
I don't think banks will allow bitcoin to replace them so easily. But in order for that to happen a large, large number of people must adopt bitcoin and then in a few generations, banks would be somewhat obsolete.
If it ever comes to that (which could be loosely dubbed as Bitcoin replacing banks), banks will start using Bitcoin themselves. If ordinary people can earn profits through Bitcoin, why banks can't do the same? I guess they could earn even more since they certainly have experience and tools required for running Bitcoin in a big way. But that doesn't mean that they will care for it, they will throw it away as soon as it is no longer profitable for them...
And they may greatly contribute to that themselves
Of course banks will, some already have discovered bitcoin as an opportunity to make profit.
Ther is already a fond in Switzerland that is based on bitcoin. But bitcoin simply has not the capabiltys to replace banks.
Banks are more than just a flow of money. They offer services, consultings and many other things. Bitcoin can't do that
I have to disagree with that
Banks may offer many services, consulting and whatnot, but they still earn primarily through lending money at usury interest rates. Bitcoin is money, so I don't see any problem with banks lending out bitcoins. Besides that, banks could just as easily issue payment cards, something that they have been doing for ages (figuratively speaking), now with Bitcoin behind such cards. Essentially, they will be earning through Bitcoin just like they earn through fiat, and probably they will find a lot of other ways to earn, which are not even possible with fiat