I agree with most of what you say. Depression runs in my family, and I have often wondered if nicotine caused the chemical imbalance, or if it kept one I already had it in check. In my case, and I am sure many others as well, nicotine can be a godsend in what happens in your mind. But I also have to point out, that I remember the first time I ingested nicotine, and the results were much different than that of drinking tea or coffee for the first time. Nicotine is a much more powerful substance. So I still have to stand by my first statement, if the daughter of the op is not having any problems, leave the nicotine alone.
I agree. Just don't want to spread misinformation when the WHO and the FDA and Health Canada are trying to say nicotine is the killer when we know full well it is smoke inhalation.
AND the doses are different....but with vaping you don't get that "instant" hit so I think fewer of the "wrong" people will get addicted if vaping becomes more common than smoking (by smokers switching, mind you!)