I know if had to introduce my mother to vaping, the ONLY way she could handle it would be with cigalikes (kr808d-1) with prefilled cartridges. There is no way on earth she could handle filling, cleaning, changing atomizers,etc,etc.
Of course that's not the optimal "vaping experience" but it might be the best route. Something like the halo g6, or the mig cig, or v2, etc.
Just depends on what you think here aptitude, and willingness to learn, would be.