One day banks will accept Bitcoin as medium of exchange and accept deposits from bitcoiners. As soon as the world powers accept it as medium of exchange.
Where I live, if they accept Bitcoin as a good means of payment, then only under full tracking. They will also demand information about where I got this cryptocurrency, and ask for documentary justification. And now in the world there are only two ways to legally increase the share of Bitcoin in your wallet before the state, this is mining and trading.
But both methods have many aspects. And therefore the state where I live will never recognize income from signature campaigns as legal, and online casinos will not be an exception. It is easier to move to a normal country than to wait for improvements here.
This is one of the problem with banks and we need to be very confident when making transactions with them. The government uses the bank to scrutinize us and get information about us. If all banks start allowing customers to make deposits using Bitcoin, that means there will be no privacy again and everything about us will be leaked to the government.
The way Bitcoin is operating is better for us allowing people to make transactions without their privacy information like name, location to be attached on each addresses. I know the government will do everything possible to get access to us even though transactions through the blockchain can look very hard to track individual users.