All countries issue currency as spending because that's how banking works - even if they settle up into something else by the end of the day. Intraday banking can't work any other way.
Politicians are elected so they are entitled to spend what they can get past the legislature - and nobody else should be able to stop them. Otherwise we don't live in a democracy.
You don't need Revenue and taxation. Taxes for revenue is an obsolete concept as Beardsley Ruml pointed out in the 1940s.
As is the idea of fractional banking systems. They don't exist. Loans create deposits, and always have. As the Bank of England explained very clearly in 2014.