Anyone whose health can be reasonably influenced by how you put out a candle has not been born yet. Everyone else has to deal with jobs and living circumstances

Anyone whose health can be reasonably influenced by how you put out a candle has not been born yet. Everyone else has to deal with jobs and living circumstances that requires one to be inside all day, work strange hours, be outside in the sun all day, inhale fine dust from any kind of road nearby. There is a near endless list of similar/worse risk factors at play in one's life. Even though these risks might be provable in their damage to your functioning and there might be reasonable solutions to them, implementing them will still be insignificant. Just like how you should avoid apples because at least apples have killed people.