The question was, is there a case for advertising bans for alcohol (presumably in order to reduce the damage done by alcohol)? I would guess that if there is a case, it would be quite weak - hence the examples I suggested. One could easily presume that an alcohol advertising ban might reduce the ill-effects slightly if, for example, a bored person buys alcohol after seeing it on t.v. but buys something else (maybe chocolate or ice cream) if they didn't see an alcohol advert. A ban on advertising corn flakes might well stop one or two people from choking on corn flakes but otherwise, I think, such a ban would have little effect, as with all the examples I suggested.
A better approach may be to mandate that every alcohol advert must be followed or preceded by an advert of the same length explaining the dangers of alcohol - what used to be called a public information film, but paid for by the same company advertising the alcohol - so that individuals can decide for themselves.
I don't know if those awful disposable vape* things are advertised or not but I see many youngsters using them, sucking in fumes that taste of sweets, fruit, and berries. These objects seemed to be aimed at the young because cigarettes taste bloody awful.
*Vape - what a word! It suggests vapour, perceived as harmless, rather than smoke.