"They also believe in no foods but breast milk until age 5."

I'd LOVE to learn more about this, since it ISN'T physically possible to
keep any baby alive on breast milk alone until they are five years old.
There's got to be some sort of misunderstanding or miscommunication going on
here.

Katherine A. Dettwyler, Ph.D.
Associate Professor of Anthropology and Nutrition
Texas A&M University