Smoking is illegal because it's a huge expense on tax money!
That just isn't correct... smoking isn't illegal, just (depending on what country you are in) smoking in certain public places.
I've no idea about other countries, but in the UK (and I don't have a source to cite for this, and it's possible I'm incorrect, but as I was told by a GP - a General Practitioner docter) the taxes paid on tobacco more than cover the cost caused to our National Health Service by smokers.
Regardless, even assuming smoking does cost more than the taxes it raises, that's not the reason for public bans - that is simply because your personal health choices shouldn't be allowed to have negative impact on the health of other people.
I've no idea about other countries, but in the UK (and I don't have a source to cite for this, and it's possible I'm incorrect, but as I was told by a GP - a General Practitioner docter) the taxes paid on tobacco more than cover the cost caused to our National Health Service by smokers.
Regardless, even assuming smoking does cost more than the taxes it raises, that's not the reason for public bans - that is simply because your personal health choices shouldn't be allowed to have negative impact on the health of other people.