Both of my children were nursing 4x a day by the time they were 8 months old. It was probably long before this, but I remember 8 months because while we were at camp meeting when Dominic was almost 9 months old he stopped nursing the 2x during the day. Thankfully I had brought some soy formula along "just in case".
Well Caitlin can't let her brother do something with out her so this past week she's also quit two of her feedings. But she decided to be different than her brother and she skipped one during the day and the one at night. This actually works well for me because now someone else can feed her before bed. So I'm good for book club, movie club and date nights!!! = )