Well I don't see what's wrong with mothers' needs.
Mothers' needs and children's needs are so inextricably bound up, that I don't think it makes sense to talk about mothers' needs in isolation.
I bf my ds because I had an emotional need to feel that I was doing the best for him. I tried to continue to bf my dd in the face of huge difficulties because I had an emotional need to feel that I was doing the best for her. Was this me being selfish, trying to fulfill my need to feel like a good mother? In fact, aren't all bf mothers just selfish?
I mean, that argument could go round and round... but what it comes down to in the end, is good old fashioned distrust of women's ability to make choices about their lives and children.