We could probably just charge tobacco companies the full future medical expenses (including pain, suffering and years of life lost) of any minors that smoke menthol cigarettes when there was advertising or product availability in that child's area.
We have good historical/statistical data for these costs so as a starting point we could charge the tobacco companies up front based off the known stats and put it into a medical fund instead of having to survey individual children.
Why?
Because children aren't responsible for being idiots with poor executive function.
and
Parents who lock their children up to fully protect their kids from the outside world are bad parents (right?)
If parents are solely responsible (the children can't be) than we might as well start sending parents to jail when their kids look at pornography and skip to the point where all parents are in jail or fined into poverty.
Children push boundaries, any industry that manufacturers, targets and profits off of exploiting the nature and developmental stages of children with purely recreational addictive carcinogens should pay the full externalized cost.
Part of respecting children is knowing that they can be extremely smart and their ideas have just as much validity as any adults but their ability to calculate and process the implications of risk is under developed.
That way everyone is treated like an adult who is an adult (companies are run by large groups of adults who know what eggs they are cracking to make their omelet, certainly they do in this case), no nannie state intervention, and importantly, no unpayed externalized costs for our larger society to pay while a small portion of other adults profit.