YY- a system which relies on giving cash incentives to people simply to STOP doing things which are bad for them is on a slippery slope. Where do you draw the line? As someone said earlier, do you pay people to stop shoplifting? Or beating up old ladies? I'm sure the same short term financial arguments could be applied- after all, the criminal justice system is hugely expensive.
The problem is twofold as I see it. First, important issues like this should not just be about money anyway. It's about the message sent out to wider society. It's about society making a stand and saying, 'we're not going to be seen to be rewarding undesirable behaviours just because it might be a bit cheaper than dealing with the consequences of those behaviours'.
Secondly, I am not convinced it even is cost effective long term. It can't be economically sustainable to create a society where people will automatically begin to feel they are entitled to rewards for something which is not a positive contribution to society. Giving up smoking is not some amazing gift to society. It's clearly far better not to start.
As a long term solution, if the money aspect is allegedly an incentive (whereas children's Health allegedly isn't) then the govt should look more creatively at systems which would put the personal responsibility back on the smoker . Obviously raising tax on tobacco doesn't work, because smokers often Carry on, but creating a clearer link between having to pay more for self inflicted illnesses might be a way forward. Obviously there will be shouts of disagreement from those who think the nhs is there to mop up their self inflicted illnesses- but if we're saying cash incentives work, then ......