I read at various posts here at forum that the banks hate bitcoin. In the most of posts is not specified that with the term "bank" is meaning the Central Banks or the commercial banks. I think that they mainly or almost totally mean the seconds.

If is this the meaning that they give to this term (bank) used by them in these posts I don't understand WHY those must hate bitcoin as a currency. Bitcoin is a currency which can be used only in internet. So cannot compete with the other fiat currencies. They have totally other main field of use. Much more profitable than the field in which act bitcoin. Then, the only thing when fiat money and bitcoin can compete are because both can be substituted with the debit/credit cards. But even here there is not competition. If bitcoin will be accepted by the banks they will have more customers and more money. Will have even the customers of bitcoin. In other words will have they which use the fiat money plus they which use bitcoin. More customers mean more profit. There will be more credit/debit card in use for such bank.

Even there must be transfer of customers from fiat money to bitcoin it will be the same for the such banks. They don't lose nothing. Will have the same that customer which will not use credit/debit card with fiat money but with bitcoin. As about the fees they are in the "hands" of the banks and they can decide what fees fit to those.

There is nothing to do here the fact that bitcoin is a decentralized currency and the fiat money is a centralized one. This have nothing to do with the activity of the commercial bank. They work of the money. Whatever money it is and whatever it is the owner or if have no owner. For they is important that is MONEY. And bitcoin is.

So, who can explain me why the commercial banks must hate, don't use and even fight bitcoin as a currency, as I read in numerous posts here in bitcointalk?