I think that the Bitcoin Bank may be good for newbie users, cause nowadays is easy to forgot your password, lost backup file etc.
(inconsequence lost ur money)
In the bank u can forget everything but u always can recoup things which belong to you. Here you must take care more about yourself, so for many it can be uncomfortable in my opinion.
But BTC destiny is to be decentralized(as everywhere is describe), BTC has a lot of advantages but also some disadvantages (like these listed). And it's your choice what is more important for you or what you do need more.
We must not fall into that trap, that is something Im sure banks are going to try to use, they will say that your coins are safer with them because you will be able to always retrieve them and things like that, but those are nothing but lies, just write your seed somewhere and you are never going to lose your coins.
We are going forward let's not bend backward and go again on that idea. We came from that thing and learn from that thing. That doesn't mean we have to use banks again.
Sure it will open a new job opportunities and would help alot. But let us think of the long term effect of this.
Bitcoin is decentralized and maybe banks are not the solution on making bitcoin usage a safer way. It is not greediness becaus we are trying to control our OWN money. Ig is taking the responsibility and the full benefit of the coin that we have been working on for a long time of hardships.