I am now 79 and still remember the struggles I had to quit smoking. I was just a kid at 21 and during a long Thanksgiving weekend, away from the influence of my work buddies, and quit the habit -- and don't regret it now. But I truly loved it then.
It would be another 10 years or so when it became a DF offense and I totally empathized with the then elderly who were struggling with their addiction.
What haunted my thinking then was Jesus words, Matthew 15:11 11What goes into someone's mouth does not defile them, but what comes out of their mouth, that is what defiles them."