how was you or they aloud to be smokers and boxers?

i remember posting a thread about how many cigarette smoking boxers their are on this forum or well known and their was a handful i was a 10 or 15 cigarette per day smoker for a year and im still struggling to quit since i told the owner or my boxing club that i am a smoker he told me i won't let you compete if you continue smoking he did let me spar for 2 rounds with a pro but he said im gonna give you a lung test so you better quit if you want to compete in boxing so how did you lot get away with it or even the likes of ricardo mayorga how did they get away with it smoking. ps does your boxing club have cameras in them i can't even slack and take a break in between a 2 hour long training session.