Do we, as a society, ignore the concept of living well when kids are most impressionable?

When do kids start mimicking family and friends and start forming lifelong habits? Almost immediately after birth. 

Then why do we wait until middle school to introduce “Health” to the kids as part of a formal curriculum, that coincidentally, happens in a period when kids are just becoming rebellious? 

If parents don’t place living healthfully high on their priority list, how are kids supposed to learn about the importance of eating well, being active, having great relationships, enjoying sex, relaxing, etc..

But the most important question is, how do we teach infants and toddlers about health? Of course we do it through example, but then what are the teaching aids, the books, and truly entertaining things that emphasize living well?

Right now, if you as a parent don’t do it, it seems we’re letting Ronald McDonald entertain our kids and some hopefully good middle school teacher in a woefully underfunded educational system do it for us.