That would be a good idea. I think people are really ignorant of the effects of second hand smoke. You only see the effects of smoking awareness for smokers on cigarette packaging (not sure if this is a thing in other countries but cigarette packets here have gross pictures of diseased hearts and lungs on them) but not mentioning anything about 2nd hand smoke.
One hospital in Wales came up with an interesting way to remind smokers not to smoke on hospital grounds:
BBCVaping is finally being seen as a bad thing too.
I asked my friend who smokes what it's like. He said that smoking actually hurts. It's the need for nicotine that makes you keep doing it.