Annalisa Barbieri says she breastfeeds her 4-year old on demand: "I'm not sure I could have parented during the terrible twos without it: it was like having an entire cavalry at your beck and call. Breasts are a powerful parenting tool." Baribieri says the natural age of weaning is six years, not six months — and she'll stop breastfeeding her daughter then the child is "developmentally and immunologically ready." Uh, if the kid starts asking for a shot of Kahlua on the side, it's time! [The Independent]