Well being healthy is important in general. for pregnant women it is importtant not to give into the cravings that are unhealthy. for mothers it depends on the situation and if there are any health problems(well that matters for all people) newborn babies should stay to milk and when they are about 12-18 months you should try spoon feeding them, no solids unless they have teeth, young children should get into the habit of healthy eating or else they wont be able to just stop eating junk food their whole life! since i am a child i an still getting into the habit of healthy eating, its much harder when you go your whole life eating what ever you wanted then you get diagnosed with Hypothyroidism or another health issue and your whole life changes.