I think it's essential.
Any food security policy that doesn't take children into account is flawed from the outset. They have to be included. Not only is that necessary, but it is also a golden opportunity. Feeding a child is more than just an obligation; feeding a child properly raises the likelihood that they will develop a healthy relationship with food for the rest of their life.
If we don't do that, the kinds of habits we were talking about develop and lead to problems we will have to deal with later on, at which point, they are much harder to break. Not only should a national food policy address that issue, but it is also that very path that holds the most potential. If we really want to change the world and how we feed people, we have to start with children.