What age should students learn about money and Financial Literacy?

I was posed this question recently and wondered other people thought? At what age should we teach students about money? My line of thinking is the sooner the better. Teaching young children about money can be very simple. They could earn class pocket money for doing things like hanging their bag on their hook or by bringing reading books back to school. The joy of earning, saving and buying can start at any age. What do you think?

Micah Hocquard