A potential "risk" lives only in the minds of those who've accepted the canard about the health effects of second-hand smoke.
People change careers all the time. I have, along with countless others. This is the nature of life, although whining about it is behavior encouraged by collectivist groupthink. Victimhood is all. We're none the better for it.
Think about all that would mean to you before throwing out a flippant answer.
Your condescension is palpable. I sniff a "career" in Sociology or something equally useful like phrenology.
Actually, I'm a phone sanitizer;)
I am an engineer by day and occasionally, a waiter /restaurant manager by night. I have had to work in restaurants to make ends meet. Sometimes very smoky restaurants. So I have some knowledge of the subject.
As for the "canard" that second hand smoke is harmful, do you deny that tobacco smoke contains carcinogens? Do you deny that smoking causes serious illnesses? Can you cite a scientific study that proves that heavy exposure to second-hand smoke is hamless?