I have zero interest in cigarettes though. So like, let's say I started chewing a gum and then I became addicted to the gum. I'm assuming the downside here would be primarily withdrawal effects of not chewing the gum? It's not like it's going to be a gateway to cigarettes for me. You'll experience caffeine withdrawal too, so I'm not sure that's really a problem.
From the article,
> There is little evidence from the NRT literature that ‘never-smokers’ like myself are all that likely to become highly addicted,
That is to say, it does not seem to present a dangerous introduction for others, assuming you mean an introduction to cigarettes.