My dog-eared copy of The Womanly Art of Breastfeeding had a section called “How Important Is Breastfeeding, Really?” Answer: “Extremely! There is almost nothing you can do for your child in his whole life that will affect him both emotionally and physically as profoundly as breastfeeding.” Anyone with a grown child—anyone who’s a person!—probably can’t read that without scoffing. But before I had the baby, how did I know that?