I think how successful and how long the mother is breastfeeding, barring health issues, is mostly dependent on how dedicated the mother is to breastfeeding. (amotherinisrael.com)
Summary Patient and dedicated mother who is enthusiastic about working with children of all ages. (livecareer.com)
The point is, if you're a truly dedicated mother, you'll breastfeed, and if you refuse, the city of New York under Caius Brutus Bloomberg will make it unreasonably difficult for you to procure formula. (jezebel.com)