2. Many banks in worldwide are trying to use this technology for their banking transactions.
3. Many business are accepting and looking to use as payment mode.
I'm not sure if this was supposed to be read in a sarcastic way because all of these are false.
1. Even though we're interacting here from different countries, it's not the 'countries' that accepts it. If you say that it's accepted in a certain country, then that means their government has announced that it's a legal currency. It's the 'individual' that accepts it, not the whole country. I think you meant to say "People from different countries have started accepting it."
2. I've never heard one. Can you mention one? The idea of bitcoin and bank just contradicts each other on so many degrees that you can't mix them up.
3. Here's the thing. People have been talking about bitcoins not being accepted in almost every establishment. It has been considered as one of the biggest disadvantage of bitcoins. Even today, establishments are still not accepting it. I don't know where did you get that information.
1. I agree that many countries accept bitcoin transaction not as currency but as "agreement between parties" without further inquiries.
2. The idea of bitcoin and bank contradicts each other but not blockchain technology. Banks want centralized blockchain for their purpose. Give a look https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/492972/gs-16-1-distributed-ledger-technology.pdf
3. There are merchants who accept bitcoins in order to increase their customer base. Most of them use services like bitpay to exchange it with their fiat currency.