I just read a scholarly article that disputed this "miserable old age" story, which seemed to be based on the idea that she was "reduced" to giving dance classes to the daughters of the wealthy. According to this article, Taglioni taught dance into her old age because she enjoyed teaching, much as many current retired dancers do. I am always amazed that my current ballet teacher, recently retired from a first soloist position at the National Ballet of Canada, enjoys teaching a klutz like me, but she says she does, and I think it's genuine.