What should be done is ban smoking altogether anyone 15 years and younger, from a specified date, that way all the newer generations will be non smokers, but banning it from existing smokers is just not on,

I was brought up when the knowledge of lung cancer etc from smoking was non existant (or hidden), it was ok to smoke or not! If I knew then what I do nowdays I would not have started, I gave up 15 years or so ago!