As a former smoker for 20 years; I can this:
I watched my uncle die with a hole in his throat: caused by smoking for over 40 years. We took him down to the smoking area in the hospital, and he would smoke by placing the smoke in the hole. As sick as this sounds; and looks, he was terminal; the damage is done, and since its terminal; there is no reason at all to deny someone. As a family of smokers; we would all smoke with him, So if you want to see how bad that looks, it is.
I was mid 20's and I smoked even more; The bottom line, is only if you want to quit will you. The more people preach, the worse you make it. By offering ECIGS; that is a good option only if the person wants to go that route. If you have watched the barb Tarbox story; that alone would scare people. I want people to switch to ECIGS; I know it saves lives, and can and will continue to be the safer concept we all wished was there 40 years. Had it been; it could have saved millions. Smoking is a know killer; and its very good killer, its great delivery system of death; however we all this; especially now.
In this case, if a smoker does not want to switch, or quit, offer support; but not criticism. Been critical backfires, and causes more issues, In Canada 90% of the packages are a health warning. It does not get any more in your face then that. However, if you want to quit you can, but only those that want to will be successful. Did you know the patch has a failure rate of over 90% in three months? E CIGS are 99% safer, and we know that. However as I said only if you want can you quit.