I am feeding ds who is 17 months. I really don't believe he gets that much nourishment from it these days, save a bit of comfort. He certainly seems to eat horrendous amounts of food and drink lots of cows' milk and is not large so I can't see that he is getting a massive amount of calories from me.
Personally, I don't mind him doing it morning and evening but I do find that it ties him to me a bit. I have to go away tomorrow night (unavoidable) and I am in knots about it because I still bf. I feel like I am abandoning him. I don't mind this relationship being as it is under 2.5-3ish but personally I draw the line at 3 because I don't want him to remember it specifically.
I also agree with posters a few pages back who say that the anthropological argument doesn't make much sense to me. Antropologically, we live now and our social constructs are valid now. I don't agree with all of those constructs and am happy to challenge many of them, but I wouldn't particularly want to bf a school-aged child because, to my mind, bfing is for infants and toddlers, not for individuals you can have a full-blown conversation with. I appreciate others feel differently, but in my social reality, I feel quite strongly that it would be taboo to feed a school-aged child in my community. Bfing in a country with limited clean water/waterborne diseases makes tremendous sense to me. This is not the case for me personally. I will miss bfing tremendously but I feel that it would be disingenuous of me to have "shaped" other aspects of his behaviour in line with our specific social reality (e.g. sleeping in a cot, drinking from an open cup, using a knife and fork, bringing a book to me to read before bed, regular bathing, discouraging thumb sucking) and not impose some boundaries around feeding. This is my reality and it makes me uncomfortable with some of yours. That is not a statement of judgement, merely a factual observation.
Each to their own!