How do you feel about smoking?

Meh, i dont smoke personallly but alot of others in my family have taken up smoking. ever since i was 2 years old people have been smoking around me. if i went to my aunts house, uncles house, my dads bedroom or ouside. it ALWAYS smelled like cigarette smoke. Its nostalgic to me to smell it. I know its not good for me but it comforts me in an odd way. Im not sure how i feel about people smoking. They should know its bad for them but i cant stop them. :/