because Government policy includes taking half-caste children from their Aboriginal mothers and sending them a thousand miles away to what amounts to indentured servitude, "to save them from themselves”. Because of that she's half the natives and whites. They are not taken care of properly, so care should be taken care of by the white people. As they grow up, they will work as a servant of white people appropriately. In those days, it is believed to work as a servant of white people better than natives. If they get married with white people, the blood of the indigenous peoples in them will decrease and eventually disappear.