Enthusiastically this! The payment system is essential infrastructure, with the demise of cash it will become effectively impossible to function in society without access to banking. Meanwhile, this service is provided by for profit agents that can deny your business for no reason and rely on an arcane industry of background checks and trafficked personal data to select their clientele.
Mind you, I'm talking about free payment services, the process of receiving and sending money, and a possible free debit payment network operated by the government, that guarantees service to anyone. If you need credit, you go to a bank, they can and should make money out of this, not by simply forming a payment cartel extracting rent from all businesses and citizens.