>not a peep from my bank

Why would a for-profit banking institution actively advertise for something that will affect its bottom line (e.g. transfer fees)..?

My bank doesn’t charge transfer fees. Not sure what that means, credit card fees? That’s charged by the network.

Obviates old-fashioned wires I suppose but those are rare and fee sometimes waived. Probably save money by reducing employee headcount.

Because customers demand it and any bank which has it can attract customers from banks which don't.

A system like that exists in Europe already, banks operate for profit there too.