Why should women breastfeed?

Baby's immune system. Breast feeding helps the baby's immune system by sharing the mother's antibodies. It also helps with bonding. If you have a hard time with breast feeding, can't do it, or don't want to breast feed do not feel guilty. The baby will still be fine and you will still bond.
Human food forhumans. Breast milk has components unique to humans protiens more balance with aminoacids important for human brain growth,easier to digest fats unique digested much easier than that in cows milk carbohydrate-lactose left partly digested but feeds the bacillus bifidus the most important gut protection in infants preventing NEC Iga.Igg.Igm making it easier to fight infection in babies.