"No, levels, it is the COMPLETE OPPOSITE!   You could not be MORE wrong. A child will learn what they love to learn."

Well, you know I'm going to disagree with you there. There are things that we NEED to know and these have to be taught even where there is a disinclination to learn them. That is the skill of a good teacher. Giving a child a well-rounded education gives them new insights and provides the tools they need to follow whatever course they later choose, having been able to sort through the options available. Someone who want to be a bricklayer must first learn to mix cement, cut bricks, use a spirit-level etc. no matter if these don't seem attractive. The end will well justify the means.