There’s no inherent reason that a piece of paper has a certain amount of value. There is one actually: the cost of Labor and the perceived value of the service

There’s no inherent reason that a piece of paper has a certain amount of value. There is one actually: the cost of Labor and the perceived value of the services or goods that labor produced/produces/will produce. The value of money does not just appear, it is backed by everything everyone in a nation produces and consumes.