Ideas often taken for granted in the United States and Europe about what it means to be a person are, quite simply, not shared with other cultures.
Ideas about personhood in U.S. culture are largely a product of Christianity, in which personhood is inextricably tied to the notion of the soul. Only a being who possesses a soul is a person, and personhood is treated as a black-and-white matter: Either a being has a soul or it does not.