[mnsc]

> Then I tell them "look at those smokers, how sick they are. And it really smells bad too" etc. When I ask them about smoking, they have very negative associations with it.

I do this as well but I also try to explain the upside so that they can understand why smokers exists at all.

"When they smoke they feel excited for a short time but after a while, if you do it often enough, you get hooked and then you don't get that excited feeling anymore but you feel sick if you don't do it". Something like that.