I've never smoked...never needed to...the second hand smoke in the house as I grew up was thicker than fog! No one will ever smoke in our houses or cars, either.
My parents gave up a 1 carton/day habit cold turkey about 16 years ago...when our DD was born. We said they couldn't hold her unless they stopped because we didn't want them associating the odor with family.
To their credit, they stopped and haven't gone back! I believe they are alive today because of it! I know...it's TOUGH LOVE, but it worked!
Of course, the second hand smoke permanently stunted my growth!
If you don't grow where you're planted, you'll never BLOOM - Will Rogers