People get very dare I say it, entitled and aggressive about vaping. Which for me is a rather big sign that perhaps they're not quite the harmless things they say they are.
A nanny actually thought it was fine to vape in my house in front of my child! Got aggrieved and surly about stopping as well. What put the tin lid on it was that an hour later I found the vaping device in my child's toy box! She'd obviously ignored my request for her to stop using it and then had absent mindedly swept it into the toy box when tidying up!
She couldn't understand the fuss about her having left an intriguing and toy-like pink shiny new object complete with highly poisonous liquid in the place where DS's toys are. And having vaped in front of him with obvious enjoyment over that morning, therefore teaching him how to put it in his mouth and suck it. Great. Very responsible. Tried to lie her way out of it, even accusing me of having somehow snuck past her and taken it from her handbag! Ridiculous and shocking behavior, and not what I'd have expected off this particular person. Which makes me wonder what's going on.
Oh and rather amusingly, I'd have had to have snuck past her on a manual wheelchair without anyone else in the house to help me into it, push me etc, all to be able to falsely accuse her!
I think vaping causes tension due to the lack of boundaries of many people using them. And the lack of societal and legal rules to protect others.
In some ways it's like the non-smoking laws have been leapfrogged for the sole benefit of those vapeing, and at the detriment of non smokers. It's not the same as other nicotine products made for smoking cessation, as its seem as a healthy and 'harmless' pastime for people to actively enjoy and remain addicted to, rather than the transitional and temporary nature of any other delivery system.
It sets up a tension from a belief that suddenly it's ok to use nicotine products in any and every situation, and being able to impose it on anyone, whatever the situation, and the appropriateness.
It may not seem fair to those who behave considerately, but it's the rudeness of others that puts people on edge.