We incorporated new tastes and flavors into our kids' diets from a very early age which helped to develop their palates and prevented them from becoming picky eaters. We don't buy junk food and give them options of fresh fruit yogurt raw almonds or dried whole grain cereals for snack time.
Once boys' and men's challenges are clear the question 'why now' quickly becomes 'why didn't we see this sooner?' The answer? Virtually every society that survived did so by socializing its sons to be disposable.