I was a smoker, but i started vaping with 0nic. But after almost 5 month of vaping, i started vaping 3-4mg Nic juice.
The nicotine changes the flavor and gives you something different to vape. Plus nicotine helps you to come your nerves down when you had a bad day, same reason so many smokers smoke so much. And when we the smokers drank too much, smoking helps not to puke, so nicotine in vaping has similar effect. But i vaped far more with 0nic when i drank, with 3nic juice i vape less when i drink. But thats because my brain has been rewired after 20 years of smoking, so juice with Nicotine saves me money by vaping less.
Few month ago, saw my neighbors kid vaping an ego stick of some sort and he never smoked. His parents dont smoke, dad is very active and the kid is not the type that would get involved with the wrong crowd that will lead him down the wrong pass with smoking and drinking.
Besides that, i enjoyed vaping 0nic juice, you get pure flavor, i still buy same juice flavors in 0nic and 3-6nic. Plus, for the first time, i havent been sick this past winter in many years, i tend to get a cold in the beginning of winter and a flue at the end of the winter.