One thing I'd wonder about is if this might reduce the number of people using it for cessation. One extra hurdle, especially seeing a person in such a formal setting, might be enough for some people.
Personally speaking, if I had to get a prescription to buy by e-juice and devices (replacement pods, etc) I would still be smoking traditional cigarettes. Former 2 pack a day smoker, quit with the help of a Juul/Uwell Caliburn.