That's a good idea. Only where there are loose rules or lack of them, you can create bitcoin bank. Therefore, no country, and juicier power will not allow it.

i really do not agree with the idea of bitcoin bank because bitcoin system is already very much stable than bank and bitcoin transaction is very much faster than bank and we can send our bitcoin to anywhere without extra charges and without high fees so i feel i do not need bitcoin bank.

You're forgetting that we have the fee called miners fee for every transaction. You can only eliminate that if your current online wallet has a feature like that but since you have to transfer bitcoins to the wallet first you will have no choice but to pay the fee .The average fee that will take 10-30minutes is 20K-30K sats but people are speculating that it will increase in the near future .

The thing is many people is still trusting banks in fact some of the people around me thinks that it is important to success in life .
If people will feel safe and satisfied storing their coins in banks. It's not a problem .

you are right that bitcoin online system is much more better than bank and we like bitcoin online system than bank and i think bank transaction fees is very much higher and bank transaction is also too much slow so bitcoin system is really too much better.

I think it's a good idea because of the presence of bitcoin bank will make the number of users increases and make governments think to make the bitcoin as means of payment.

If one bank is ever capable of moving a single government, and that's a big if. We often do see them as living in a symbiose relationship with govs, especially whenever some To Big To Fail Institution has to get "rescued" by our taxmoneh.
I believe these institutions are overated.
And we are at the present stepping up right here, to correct that.

It is possible, but on the second thought, they can't dictate the price of bitcoin as many will protest when that happens. Anyway, I think we need a bitcoin bank, but they should have a purpose same as the real life banks. They should offer loans and other things that real banks offered. If they would just function like exchanges, then those banks will be a failure. 

yes i am also agree with you. i also not in favour of bitcon bank, i think the community of bitcoin are not yet so big that they need for any bitcoin bank .i think currently we the online wallet system is still the good option and i like it to continue as it is working right now.

They might fail as banks, but not necessarily as exchanges

In fact, there are a few projects which have the word bank as part of their name (e.g. ChronoBank and CoinsBank). I don't know anything about the former (ChronoBank) but the latter (CoinsBank) started as an exchange (back then it was called Bit-X). As said many times already, loaning bitcoins is not a viable idea presently, but the major reason why they began pretending to be a bank was issuing Bitcoin payment cards. Some established web wallets (like Coinbase and Xapo) do the same, but they don't pretend to be banks. Perhaps, there are other services offered by web wallets and not by exchanges which could be construed as bank services that would allow us to consider them as Bitcoin banks, to a certain degree

I think it is possible in future. When bitcoin becomes the world currency there should  be bitcoin banks. I hope that banks will function like real money banks, they will give loans and other facilities like real money banks.