I think the key with vaping (not necessarily with Juul though due to market availability) is that it's very easy to decrease the dosage of nicotine without reducing the fixation amount. For traditional cigarette smoking you want a high amount of nicotine to fill that void (and also to get through the other side of other addictive substances in tobacco beyond nicotine) and to effectively "get hooked" on vaping instead, to the point that normal cigarettes are completely unattractive to you.. Afterwards, decreasing dosage with a vape is super easy, especially if done in a blind way, ie, buying two identical flavors at different dosages (your "normal" and the lower dose) and put them into two carts. Pick a random one each day to use. I've heard of people doing this all the way down to 3mg to get over the lowest dosage hump even. One has no nicotine, the other only has 3mg. Eventually the non-social fixation (ie, at your house alone) stops, and the social fixation (ie, outside of a bar, etc) is controllable with no nicotine... Then that's not even getting into the different ohm ratings etc that further control dosage without affecting the fixation of using the vape.
edit: note I say "easy", but its not a short process.. If you try to go immediately from 48mg to 3mg you won't have a good time. It takes months for each step down
edit: note I say "easy", but its not a short process.. If you try to go immediately from 48mg to 3mg you won't have a good time. It takes months for each step down