Before I start I note that I'm old enough to do what I want and I have no other habits/vices, but don't vape, kids ;-) So I, a total non-smoker, started experimenting with nicotine a few weeks ago. First I tried gum which did nothing but give me an itchy throat. Then I bought a vaping device and some juices. Why? I think I'm low in dopamine (I am not depressed, though) and had read nicotine provides a temporary boost…
As someone who stupidly started smoking later in life, that's pretty much how it goes. Nicotine addiction isn't like on TV where you smoke a cigarette or puff a vape and suddenly you're hooked. It's a slow process you find yourself doing more and more often until you realize one day, it's every day all the time.