Why? Do they miss the stench on their hair and clothing, or were they too cheap to buy their own smokes and settled on second hand?
Actually, they prefer avoiding people as nasty as you tend to be, which tend to be the only people in the places they used to frequent anymore.
The smell of tobacco smoke, if one dislikes it, can be removed with soap and water........the stench of control freaks is bone deep and can never be removed.