OK, and I think I agree with you there. I guess I just have a problem with the word "need" which implies that there will be serious adverse effects almost certainly if the need is not provided.
For example, people need clothing in winter. Without clothing, they are almost certain to get frostbite if they go outside during the winter. It's not arguable.
People need food. We can all agree that an organic diet is healthier, but does that mean that we "need" an organic diet?
You see what I'm getting at: babies need nutrition, and breastmilk is better nutrition than any other milk, but is it a need? The immune components seem like the best argument for breastmilk as a need. However, the relative strength of children's immune systems varies widely. To me, it's very hard to say that *every* child *needs* the immunities passed through breastmilk for a full two years. I've seen Dettwyler's research but I don't know of anything else that addresses this issue...do you know of any studies? I am open to learning more.
However, whether or not breastmilk can be said to be a need, in some way, until 2 years old, I think that we have a long way to go before this becomes fathomable to the general public, and it is certainly not an achievable goal for most breastfeeding mothers, for a variety of reasons. I think every mother should be encouraged to nurse as long as she and her child both wish to. I think 2 years is a great goal to shoot for. IMO the problem with calling it a "need" is that...well, to me it's problematic for a couple of reasons.
1. It sounds very dogmatic. It doesn't sound like there is room for individual difference. If no child had ever been known to self-wean before 2, it might make more sense, but 'early' self-weaning happens...even to mamas who nurse on demand. It is not fair to imply that these mamas did not meet their child's need.
2. It is intimidating. If a mama has been nursing for 12 months and feels totally exhausted, the way to get her to "gear up" for another year of nursing is not, IMO, to tell her that her baby "needs" the breastmilk. She will inclined to be skeptical if she has not heard this anywhere before (and chances are she hasn't) - plus, it puts her on the defensive, AND makes her think - wow. I can't do this for another year.
IMO the better option is to point out how much easier nursing in the second year is, and that as complementary foods become a larger part of the diet, the child will nurse less often, etc. I think it's also helpful to point out to mamas that they do not have to nurse on demand if that is making them resent and dread nursing. AND to point out what wonderful benefits BF has already conferred.
Diplomacy, gentleness, providing options and acknowledgement of a mama's accomplishments can go a long way towards creating the possibility of continuing to nurse, IMO...I see it on these boards...and if a mama is just DONE for whatever reason I think it behooves us to be supportive of that. We have not stood in her shoes. MDC mamas are not selfish, not trying to get the kid off the boob as fast as possible. If I read that an MDC mama has decided to wean, I know that it must have been a tough decision and for good reason, and I respect that. I think it's the only thing to do.
I just do not think the "need" tack is helpful and I also am not sure that it's accurate, strictly speaking. I think you can make a case for it but not the same kind of case you can make for breastfeeding a newborn.
Just my thoughts.