Personally, my daughter of 2 yrs loves the smell of my vapes, says it smells pretty and yummy. Kinda cute.
But my middle son, now 15 was hospitalized at 4 months of age and was there for 8 months. Childrens hospital,in DC.
I would not have appreciated any one vaping, or smoking near him till he hit the double digits in age and was old enough to move to another location if the smoke bothered him.
Luckily my daughter is a healthy thriving lil young lady. But it was very stressful for me with my son. Not knowing what caused his illness and the fear and stress of it happening again. I was told his heart could suddenly stop for any unknown reason.
We likely wont know any negative side effects of vaping for another 10 or so years. Much like many medications we are put on, years later they come back and say oh, thats not good for you. Oops.
Point is regardless if its ok or not , safe or not, i feel people/children should be treated with respect especially if they are unable to remove themselves from the environment.
This is my opinion only.