Well, it seems that she has already quit.
Why does she want to continue coming to lessons? I think you are more handsome than you let us know about.......just teasing. ;\)

Has she been given a choice of continuing lessons without practice? If she has a choice, then why practice if she doesn't like to work?
My parents were just different I guess, but studying the piano was a privilege awarded to me and practicing was expected, not a choice for me to make.
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Then let us all do what is right, strive with all our might toward the unattainable, develop as fully as we can the gifts God has given us,and never stop learning." ~ Ludwig van Beethoven