1. "Nursing makes the job of mothering easier, not harder." Norma Jean Bumgarner
This has got to be one of my favorite reasons. Of course, it's so good for the child but also what mom doesn't need her life to be easier?! The good old reasons like "it's always perfect and ready" still apply but with older babies and toddlers nursing becomes so helpful emotionally. The sucking reflex continues to be very soothing for children far past a year and let's face it, toddlers get upset kind of a lot. Whether they've scraped their knee or don't like the way their clothes feel, nursing will almost always help.
2. Emotionally Strengthening
Our culture tends to believe that the only way children will become independent is by being thrown into the water, but really the opposite is true, when we let kids reach their own milestones they conquer them courageously. When they're made to do things before they're ready, like weaning for example it can have a negative effect and make them more nervous and clingy.