Thanks Hedgewitch for the explanation, I differ from the original ASH in that for me it is mainly about protecting the children.
I was always more upset about ppl smoking around children especially in a car, than around other adults as I (usually) have no problem now as an adult moving away from smokers outdoors (I do move away from them at bus stops and sometimes give them a bit of a dirty look) or I will speak up most times if they are in an indoor public place they are not allowed to be smoking. I will only speak up if I feel it is safe for me to do so, otherwise I will raise the issue to the relevant authority.
It is more difficult for the children of smokers, I know how it was for me so I would not appreciate anyone telling me I do not know what I am talking about here (Leafar seems to like telling me I do not know what I am talking about). Constant chest infections, breathing trouble, coughs, catarrh and headaches were the norm for me as a child, only for me to recover from these chronic illnesses as a young adult when I could leave home and get away from my smoking mother. I assume it is the same for many other children of smokers. In fact many get ear infections too which can be very painful, I was lucky this was not something I used to get, but I did have a sore throat a lot of the time and was "snuffly". If only everyone had known why I was always ill, it was so easily preventable.