They aren’t exactly good for you.
Or bad necessarily. From my understanding nicotine is similar to caffeine in that regard. The harm is in the other stuff you’re pumping into your lungs
Addiction is bad for you, and nicotine is really addictive if you let it rewire your brain (it is a dopamine agonist).
I stopped drinking coffee over a week. It took me over a decade to drop nicotine.
Yeah Nicotine is also very bad for your mental health long term. You become so hooked on it that you literally can not be happy without it.
It’s such a pacifier. And with vaping, you can get a little hit almost no matter where you are - don’t even need to step out for a break