Hmm, I never touched a ciggy until I started smoking pot. That is how I got hooked. The cigarette gave my high an extra kick; and before I knew it I was addicted.
I have since dropped all the drugs except cigarettes. I personally feel that if I was to stop smoking cigs at this point in time I would turn to something else. The least of the evils for me, I guess.
The gateway drug theory never flew with me. Folks to turn to drugs because it feels good now. If one thing isn't available, they'll find something else.
BTW: Many people use food as a drug. Oh no! Food can lead to cigarettes, then sucking diesel fumes, then starvation!
Food is a gateway drug!!