I think that you should teach her how to drive a stick on your car first, then decide if a manual transmission is right for her. I’m sure that you don’t think your car is more important the she is. And she won’t do much damage to the car. About the worst that can happen is that the clutch wears out a bit faster. Just make sure that she errs on the side of letting the clutch out too slowly rather than too quickly. Dumping the clutch can damage the mechanical components, while slow application might just cause more wear to the mating surfaces.