Not entirely different. Smokers may choose to smoke and that is their choice but the people around them don't. Some of them may have control over their exposure

Not entirely different. Smokers may choose to smoke and that is their choice but the people around them don't. Some of them may have control over their exposure but children (and pets) in smoking households are victims with little to no control over their exposure. I don't think we should ban tobaccos outright, regardless of that fact, but smoking has real consequences for people other than the smoker themselves.