Sadly true, I think. My grandparents gave up smoking at the same time after grandad contracted emphysema. They were the generation that believed smoking was good for them and smoked for 50+ years. My grandma was shocked that she had physical withdrawal symptoms, something she associated with "druggies". But it went away after two weeks. After that my grandma never thought of smoking again and actually became repulsed by smoke. But my grandad never got over it, he craved a cigarette every day for the rest of his life.