It was always the starving children in Africa whose welfare my generation was invited to consider when threatening to leave food on our plates. As I watched a mother cajole her child into eating "just two more mouthfuls" recently, it struck me anew how illogical it is to force a person to eat food when they do not have portion control. Noone can guess correctly for another person how hungry they are (children should not be forced to eat food they do not like either, but that is another question for another day).
This is one reason why I am firmly outside the puree-up-vats-of-boiled-vegetables-and-spoon-it-into-the-child's-mouth school of solid food introduction. When the baby smiles or opens hir mouth to burble something, in pops another spoonful of slop. Much better to keep on with the breastfeeding and let the child develop the hand-eye coordination to get as many spoonfuls of yoghurt or handfuls of cooked carrots into hir mouth as se wants to eat/taste/play with.
Controlling what one puts in ones own body is important.