Awesome SC....My 80 YO mom lives with me and she was a long time smoker who did manage to quit almost 30 years ago. But she says she is just one cig away from picking them up again. She still dreams of it.
She is very happy with my vaping, but extremely curious. I let her try a vape of a flavor she was very interested in. I almost had to pry it out of her hands, lol. I use low nic, so I wasn't worried about her getting over nicotined.
Get your GM the easiest setup that you can keep up with. If she has to go through the learning curve at her age, it might deter her from the enjoyment of vaping. Good luck to your GM and now you have a new vaping buddy!