I think she needs to learn in a way that feels best for her. i have been a lefty all my life and been playing since 15 and now 44. I started out when my first left handed guitar cost me about $700 (BC Rich Warlock). Over the years guitar prices have come down and it has been easier to find left handed guitars in the stores. You can always search guitar centers website and in the keyword section just put LH You will be able to find many inexpensive models. I have struggled with the lefy handed thing for years. My dream guitar, An Ovation Celebrity Deluxe LCS247 I ave recently found out has been discontinued. I love the feel of the neck because i have problems with my right wrist that causes my hand to cramp up, an old wound. But all and all its not to much different being a lefty, it all comes down to what she prefers, don't force her to go right handed if she is not comfortable with it or she will most likely quit playing. Good luck and I wish you both the best!!!