[shiftingleft]

Do they help deter people from becoming smokers in the first place?

[kortilla]

Not sure if much serious research has been put into it. I would be suspicious of it deterring them because a lot of initial smoking happens in social situations where friends pass out individual cigarettes.

By the time someone buys their own pack they are probably hooked.

I suspect the obscene taxes blocking out young folks is one of the most effective strategies