Pumping is a good way of knowing how much milk the mother has. Breastmilk does not contain enough iron for the baby's needs. It is easier to bottle feed than to breastfeed. Breastfeeding ties the mother down. There is no way to know how much breastmilk the baby is getting.
Modern formulas are almost the same as breastmilk.
If the mother has an infection she should stop breastfeeding. If the baby has diarrhea or vomiting, the mother should stop breastfeeding. If the mother is taking medicine she should not breastfeed. A breastfeeding mother has to be obsessive about what she eats . A breastfeeding mother has to eat more in order to make enough milk.