The worth of the "Girl"

The girl in this story is absolutely being instructed on how to best serve others, how to best see to their needs, how to be an asset to them instead of herself. Nowhere in this story does the mother, or the instructor, tell the girl how to help herself in order to simply improve for her own well-being and happiness. In what ways does she work to become a commodity for others? The obvious answer is in all three ways: use value, exchange value, and sign-exchange value.
In my interpretation of the text, the girl is being prepared to serve with a higher sign-exchange value. What immediately came to my mind was that the instructor, perhaps family member, was training the girl to become a symbol of wealth and high-standing in the community, therefore bring honor to her family. It did not seem to matter what the girl became on the inside, only what she appeared to be. By doing this, her family's value would increase in social circles. She would work as an instrument to bring her family a better name and standing.
Concerning her exchange value, the girl is being trained to be completely competent in hard work, in serving others. Perhaps her mother is trying to get her married off. Perhaps she thinks the only way she can do so is by proving to a man that she can serve him unfailingly, as well as serve everyone around him.
It is all about what she can do to better improve someone else's happiness and comfort. The girl seems destined to live a servant's life, someone or something that only does what she can to look the part, without being true to herself.