It took you 35 years to learn smoking is a bad thing to do? You had to be told smoking was bad for you?
I started smoking in 1951 (at age fifteen). Back then very few people didn't smoke -- and those who didn't seemed unsophisticated, "square."
All the big movie stars smoked in all their movies. Ronald Reagan endorsed smoking cigarettes, assuring us it was a healthy thing to do:
There were ads endorsed by doctors telling us smokers live longer and have healthier lungs:
There were pretty girls dressed in tights and carrying trays of sample packs of cigarettes in all bus and train stations. They focused their attention on uniformed military personnel.
So, yes. After being told for so long how good smoking was for me I had to be told it really was bad for me. But by the time the truth was made public it was too late. I was strongly addicted.
While it takes a severely addicted heroin addict an average six months to completely withdraw it was more than a year before I no longer needed the Nicorette gum and lollipops to fend off the craving. Still, the occasional urge to "light up" came on now and then for about another ten years -- and I was not unique in the tenacious compulsion where nicotine addiction is concerned. Ask any former long-term cigarette addict.
Cigarettes are by far the most deadly of all addictions and public education, alone, is responsible for reducing the number of smokers from almost everyone to almost no one -- without ruining any lives or imprisoning anyone.