I started inhaling my own smoke at 12. I’d been inhaling may parents in the car my entire life up to then. Quit a few times with some short term success but finally quit cold turkey during a bad bout of pneumonia. That was somewhere around 1992. Once I had detoxed I tried one or two again just to be sure I had made the right decision. I had. It’s been at least 25 years since that last puff. I don’t miss it at all. It did take me 24 of those years to get motivated and loose all the weight I gained as a result of the food habit I traded for cigarettes. Even so; I still think I was healthier even at my all time high weight then I was while smoking.
BTW - Us reformed smokers are much harder on smokers then lifetime non-smokers.
Edit to bring this back to Trains: The only smoke I enjoy smelling today is the coal smoke from a locomotive (https://www.largescalecentral.com/externals/tinymce/plugins/emoticons/img/smiley-frown.gif)