No input on how to convince her she wants to learn, but should she want to...
I honestly think learning to ride a motorcycle is one of the easiest ways to learn stick for non-car-people. As a car enthusiast and engineer, I have a fundamental understanding of the mechanical workings of a clutch, pressure plate, flywheel, ICE, etc. A lot of people don't, and it makes it difficult for them to grasp the concept in their head. The "numbness" of some modern vehicles only complicates the matter - especially when you drive a car with a CDV, funky TBW, etc. I've had several friends who don't know how to drive a manual start driving a motorcycle pretty easily. Those same friends then had a very easy time switching over to a manual car.
The MSF course is great for these people, and its pretty cheap IIRC.
-The lot is closed off, so its a safe, low pressure environment
-You can slip it all you want, but will never wear out the wet-clutch on the bikes used for the class, so its also lower pressure in that regard
-Its much easier to feel how clutch pressure/throttle impact the bike vs. the car
-About 4 hours is spent on getting the "feel" for it, starting, stopping, and shifting
-Its taught by instructors that have taught hundreds of people who can't drive a manual how to do exactly that