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Competition and divided roles keeps these systems somewhat functional. Put them all under one authority and almost certainly see an increase in abuse

> and the card that comes with one. And that's not something the government is enforcing

They are. Most countries impose additional regulatory compliance on businesses which deal with cash making it costly to handle.

There's a big difference between being able to borrow money, and being able to function.

Not when "being able to borrow money" is used as a proxy for employability and whether to rent to someone.

Living without a bank account ('IBAN') in the EU would be hard today. Living without a debit card is still doable, but becoming less and less practical. Living without a credit card is completely normal, many people do not own one, including me.