My mother is from Jamaica and I have a similar story. I was in Jamaica last summer visiting my grandmother. We were sitting on he porch and she was telling me how disappointed she was in her sister, who she raised as a daughter​, as she "gave" the daughter of the women who helped raise my mother to her sister. I remember being struck by that language. I began wondering what the real nature of the relationship between my grandmother and the woman I affectionately knew as "aunt erma." I wonder how common these kind of arrangements are around the world.