Which might be the focus of an anti-tobacco advertisement ?

Well smoking is not the best thing on earth kids may do it to look cool for everyone else to see. But did you know that a smoker lives 10 years less than a nonsmoker which means a smoker dies much quicker. If you are under 18 please don't ruin your life also if you smoke around other children it could also cause them to get cancer.

Someone producing an anti-tobacco ad would focus on giving credible evidence that proves that smoking is very bad for you, and that it will ruin your life. I've seen ads online for vaping, and they all show what could happen to you if you do it.