"In the meantime because it's an addiction I get to see my mother killing herself (and those around her?), like all her family have done, and she knows she's doing it - come on, there has to be part of her that is just plain thick".
Pruni, I agree. I smoked for a long time.
But once we started a family, it was time to stop smoking, because the children were more important that the addiction.
I wanted to be around for them for as long as possible, and I didn't want them to grow up around a mother who smoked.
Either from a passive smoking point of view, or from seeing me smoke and thinking that it is an OK thing to do.
It was very, very hard to stop smoking, and sometimes I still get almost overwhelming cravings, years after I have given up.
I also know that I can never, ever have just one more cigarette, as I have an addictive personality, and would want to start smoking regularly again.
If I can give up, anyone can - you just have to think something else is more important than that next cigarette.
Giving up smoking is bloody hard to do, but the alternatives are even more grim.