I was adopted at 3 months old, and I have many friends who were also adopted in their infancy.
I remember my friends mother recounting a story in which she was feeding my infant compadre in a shopping center, and a woman came up out of nowhere and pretty much berated her for not breast feeding. It is such a war between these women, and its ridiculous, since most mothers who don't really and honestly can't.
And quite frankly, as part of an army of formula fed humanoids, I'd like to think we all turned out just fine.