Okay folks, there is a rhetorical device called hyperbole being employed here on behalf of the health benefits to child and mother of breastfeeding. Literal-mindedness is a professional hazard for us mathematicians, but even I can see this is hyperbole and not to be taken at face value.
Sheesh!
A ditz like this is quite capable of trying to breast feed her whelp well into the child's teen aged years, based on the advice of her vegetarian nutritional advisor, her alchemist, her masseuse, her Latin pool boy, and the psychic who does her horoscope.