Thats what State bank of India is doing too but it has gone a step ahead by deciding not only to ban CC purchases but also debit card purchases.That's the beauty of SBI.Lets hope that not other banks follow such a move.
Does the State Bank of India also ban funding crypto purchases with funds from checking and savings accounts or is it just with credit and debit cards? I don't know how the banking system in India works, but I would just move my fiat to a bank that allowed it.
There are lots of options in the usa as far as banking goes. We have local credit unions, regional banks, and big banks like BOA and JP Morgan Chase.
I don't see an all out ban throughout the banking systems in the United States, unless it happens due to government regulation. And after listening to the audio from the U.S. Senate hearing regarding crypto last week, it appears they have no intention of causing harm to anyone involved in the industry, other than those that are doing harm themselves. Scam ICO's, BitConnect type pyramid schemes, ect.