I could see supporting with this, but it does seem like an abuse of the 'for the children' argument for this. Children pretty much have to eat what you give them until they get a job. Also some chicken nuggets are bad, but some average a gram of protein per 10 calories, which is a pretty good ratio, and especially for frozen food. Can't help but think this is too broad.
I don’t think this is true in practice; it feels sufficiently obvious that children’s tastes influence what they get fed that I’m not going to bother to find a citation