[daniel_solano]

Arguably, a big part of the reason why "lactation consultants" exist is because breastfeeding has become relatively uncommon in places like the U.S. It's not that the nipple isn't an intuitive interface—it's breastfeeding that must be learned, and the generational transmission of that knowledge has broken down.

[btilly]

Question, do you have children of your own? Have you been through the process of watching a baby learn to breastfeed?

Technically you're right, breastfeeding must be learned. And breastfeeding is in large part the skill of assisting and teaching babies how to nurse effectively. The fact that they need that teaching says that the skill is not intuitive.

Admittedly they do come armed with reflexes to make them more easily trainable. But the training is needed.