Probably to be expected, smoking isn't desperately high on the 'really good ideas' list in the first place
To be fair I think people underestimate how difficult it is to give up, even with modern aids. Hospital I use to work in had a smoking room (we're going back a couple of decades) and most of the patients using it regularly had at least one limb amputated in part due to side effects of smoking addiction. Many of them when you spoke to them would say they couldn't give up, they'd lost all hope.
I don't fully understand it as I was never a smoker, but given how hard my fat **** finds it not to eat the wrong foods, I have some sympathy.
Also vaping is a health time bomb too. NHS was wrong to back it as a substitute without proper research into it's long term side effects and standards for manufacturing.