Bitcoin banks is not really a bad idea. On this day the online wallets that we such as blockchain.info, coinbase and others are also like banks where we store our bitcoins. There are also sites that loan bitcoin with interest. With this at hand the idea of a bitcoin bank is already started to exist. Decentralization is still present even though there is bitcoin banks. The difference with real banks is that your bitcoins value does not stay the same it is volatile and depends on the dictate of market value.

If xapo, coinbase, and circle are bitcoin banks, does it means that our bitcoin there is no longer decentralized. As far as I know once it is decentralized nobody can hold your bitcoin,.Sounds stupid, sorry for the terms.

I think this is a good move, with the existence of bank bitcoin certainly can add users rapidly and significantly. In addition of course to make the Government consider the use of the bitcoin.

Not many countries will prohibit the usage of the bitcoin. The bitcoin is recognized as currency in several countries.

No, bitcoin bank could easy scam their investors coins, besides that have a bitcoin bank will centralize bitcoins that goes against the bitcoin itself, people does consider this because they wanna to get some interest in their coins like we are able to get with fiat, with our savings. But there is exchanges providing already those interest, even not being the best rates taking into consideration that crypto has a huge volatility.

But i think that it is not need now, because we are already have our amount in our wallet and also we can exchange our amount easily and also we have no problem to transfer the amount, and everything we can do with bitcoin easily, even we can paying bills and selling and purchasing. So in the end i don't think that we need bitcoin bank.   

What is the real meaning of bitcoin?  Decentralized, transparency monetary system where everybody has the right to be the bank and the customer at the same time. What is bank? Centralized, closed monetary system where you have little control of your money. So we want to "let the fox guard the hen house"?

true I think it will only make bitcoin and users become are exposed so what is the purpose of manufacture of bitcoin will not be able to find you when you're using bitcoin bank?

i disagree , bitcoin bank for what ? bank local it's enough

Bitcoin can already be taxed when you submit your yearly tax reports to your local IRS. So in that aspect there is no difference with how the situation is right now.

Another thing is that if a service pops up calling itself a Bitcoin Bank, that it won't be anything like you see with regular fiat banks.

It will just be an existing or a new online wallet service or Bitcoin exchange offering bank like features to people being interested in it.

Most people like the idea of having the possibility of earning interest over their coins, which is also the main reason as to why they would support such an initiative.