I feel this is too little, too late. People who would use this already have started using Credit/debit cards (instead of local systems). Bank account numbers are not easy to transmit (sure, we could do this via QR code, but that's a new piece of technology people would have to learn how to use). The internet has happened, and it works on credit card-style numbers.

Banks had a chance to introduce this ten years ago - but back then, they were greedy and wanted to keep money in limbo, most likely to have an advantage in taking interest. By now, the market has other, more internationally accepted modes of payment.