I live in Germany, and even local transfers (between different banks) are not guaranteed to come fast - sometimes it's quick, sometimes it's next working day. So what's true for you is not true everywhere even in the Western world.
Yes, certainly some countries need to modernize their banking infrastructure.
But you can do that without a blockchain for a tiny fraction of the energy cost, transaction time, and transaction fee (if there's a fee at all).
Example: twint.ch Instant transfer, no fees, ubiquous (you can pay you train ticket/parking/groceries etc... with it as well as transfer money to anyone). No blockchain.
There are in Instant Money transfers in Germany if the banks in transaction support it.
Re:Shorting Bitcoin
by anthony_barker on Tuesday June 29, 2021 @07:41AM
(#27674453)
Like he said it seems to depend. Last week sending Revolut to N26 was instant. N26 to Revolut took 3 days (weekend).
There is no sepa rule that requires inst sepa if it is available.
Need to send a wire? Locally (within the same currency) I can send 24/7 with an average time to hit the other persons bank account of around 5 seconds - cost is $0. No blockchain involved just old fashioned brick and mortar banks.
Perhaps you need to change banks.