Soon enough, banks may actually use bitcoin as one of the main currencies.
There are already banks in London that are thinking of adopting bitcoins. Just look it up in your search engines and you will surely be able to find those news.
True, unless bitcoin exponentially increases the market cap, which would seem impossible because of how high the difficulty would have to rise for new blocks to be mined. I think it would make banks stronger if banks utilized bitcoin in their business.
I don't understand why people will choose banks for gambling if they have freedom to gamble online with bitcoins without disclosing their identity.
Well we don't know the reason behind why they are choosing to do that rather than gambling alone with bitcoin. But let's go back to the topic,
It is really impossible that bitcoin is going to make those banks disappear because from the start banks are already there.
And the government needs more to know the use about bitcoin before it decides to make banks disappear.
Banks have support from Government and society as people are involved with banks since its inception so its really hard for people to quit banks and switch to bitcoins.