You know, in health school, we usually consider things from both ends of the spectrum, either from the excess end, in this case, overweight (a condition termed overnutrition), or the lacking end, underweight (a condition termed undernutrition).
However, outside the health class, society seems to be more worried about undernutrition and being underweight than overnutrition and being overweight. In fact, being overweight in some parts of the world is considered a sign of healthy living.
However, being overweight or underweight is never in anyone's best interests, hence the need to maintain a healthy weight.
With children being like a "clean slate" (tabula rasa), relying on parents for guidance at the most critical periods of their growth and development, parents need to be more responsible and more knowledgeable.
The most important aspect is assisting parents in learning how to teach their children self-control through personal examples and word of mouth. Parents need to feed their children at optimal levels and avoid waiting until they are full. They have to change the mantle of leadership from the child being the king to them being more responsible for decisions.
Until something is done and parents are more in control and more enlightened, children's health and wellbeing will continue to deteriorate. It even extends more than feeding habits, screentime is also a huge part of the picture.
Yes, because it means there is "nough food" but that is an issue when there is always food available like it is now - and it is 24/7 available too. We live in a weird world.
The other factor is that children aren't clean slates, they are going to suffer genetics too, like craving sweet foods, like us all (nearly) so reinforcing these habits are going to lead down very rough paths.
You've spoken correctly. Nice piece by the way!