But still I would imagine that such antibodies would be exponentially more valuable in the earliest moments of life, where it’s likely that the newborn fist comes into contact with the mother’s fecal material and all of the bacteria living on our skin.
Some theorize the baby needs the mother's poop, to start it's own digestive microbiome. It works that way in other species, but I don't know if it's more than speculation for humans.
You also need a skin microbiome, but you can get that later.
