those that find it repugnant do so (imo) as they view it as a sexualised thing once a child can walk talk etc. it is this that is totally repugnant imo. the truth is (uh-oh) that if it were only they health of the child that was a consideration then all children should be breastfed until they self-wean. i understand that 4 is about average if you take worldwide figures.
however, in our individual-centred culture (that i happen to buy into although not completely) the health of the child is not they only consideration. the happiness of the mother is a massive consideration and as extended breastfeeding is not the norm in this culture and in fact mothers are generally not prepared or conditioned to even breastfeed, bottle feeding from go is fine too. because nothing worse for child's health then unhappy mother's imo.
there you go.