Yeah, these are recommended bf until or around ages (note the vagueness). Just like that what to expect book says optiomal until one, and all that. But then the snark in me comes out, and I have to ask, until what? 3? 4? Five or more? I can make a rhyme here....how about until cow milk magically replaces human milk for humans and is a good, safe idea?
: Then I get even more pissy and can't speak coherently. Ask alegna (just pulled her lactivist butt out b/c she seems to have actually been well read/well versed on this stuff and posts here semi-regularly) or some others who actually read this stuff. I'll be the first to admit that I go by intuition. I don't do well w/reading what I *should* do, b/c as a rule, I don't like being told what to do. I find it much more easy to do what feels right for me and my kids, but that kills the argument right there, b/c I don't have science to prove that my milk saved one of my boy's guts or that I just think it is best. period.
Remember, that even if you don't read, do understand that weaning is a full on process, and not a cold turkey thing. The first drink or eat of non mama milk is technically the beginning of weaning. There is huge variation in when that begins, as well as when it ends.
Many supplement w/table food and alt drinks, and still nurse to 4 or 5 or 6 or even older (I've seen a handful pop up here and there and admit it, you don't see it often, though-b/c we're made to feel dirty for admitting it so it is kept hush hush) and beyond......"normal" and "average" when not scientifically quanitified are about like not bothering to utter the words for some.....I say, why mess w/nature? Must we quantify every process of our beings? For some, apparently we do. I feel sorry for them. They can't get in touch w/themselves. the end.