Somethings worked. It's much harder to say what exactly of various different policies have contributed what in what way.Well you can't say it hasn't worked. Only about 14% of the population smoke now, 35 yrs ago everybody smoked in hospitals including the nurses lol
It's also easy not to notice undesirable side effects of policies. Don't get me wrong here I'm ultimately glad less people are smoking. I just wish we did this stuff in more careful and scientific ways is all.