Simplest answer.
You weren't ever a smoker, you do this for, well, whatever reason, but it's not necessitated in your case. If it concerns you this much, then don't do it!
Easy! WE are using this as a smoking cessation device, we are addicted to cigarettes and use this to stop smoking. You do it for pleasure, it's not a MUST for you. Obviously you have concerns, no one has an honest answer for you, so it might be best to just stop.
You weren't ever a smoker, you do this for, well, whatever reason, but it's not necessitated in your case. If it concerns you this much, then don't do it!
Easy! WE are using this as a smoking cessation device, we are addicted to cigarettes and use this to stop smoking. You do it for pleasure, it's not a MUST for you. Obviously you have concerns, no one has an honest answer for you, so it might be best to just stop.