The popcorn lung chemical didn't show it face in e-liquid, it became an issue for people that have been in the manufacturing stage for POPCORN. Not e-liquid.
There are no known cases of "popcorn lung" in smokers or vapers.
However, Dr. Farsalinos said:
"Bronchiolitis obliterans is not caused by smoking, you are right. But why? Because smoking exposes the lung to a large variety of different toxins, which all together cause another kind of disease: COPD.
The incidence of COPD in smokers is up to 15%. The incidence of bronchiolitis obliterans by diacetyl exposure is extremely low. In fact, only few cases have ever being documented.
Most commonly, diacetyl exposure causes a decline in lung function which can be detected by a reduction in FEV1. This is much more common than development of bronchiolitis obliterans. However, this can be easily misdiagnosed as COPD...."
(bolding is mine).
Since this topic started out about selling to minors,I said earlier:
CHILDREN do not have the maturity, awareness, or behavioral milestones to manage alcohol, nicotine, overeating dependencies/addictions. Anymore than they can treat themselves for ADHD.
That is precisely why minors are not given access to these things....because they are not mature enough to manage and/or treat themselves for addictions/dependencies.
Later, you write:
I would like to know but since I can not be certain with some flavors, I avoid those.
Let me ask you something, Robin (or anyone else): Would you say that
children are capable of doing the same level of research as you or I, or Dr. Farsalinos? Do you think children can do the same research to find out what flavorings are "okay" to vape?
And yes, I *do* distinguish between remedies that are appropriate for children, and remedies that are appropriate for adults. They aren't the same. Even most medications have completely different dosages for children than for adults. This is just common sense.
Therefore, if parents who are not minors, (and hopefully in tandem with an understanding pediatrician) wish to help their child overcome a smoking addiction (and there really aren't that many children who are addicted to smoking in the 1st place) and wish to purchase eliquid and vape gear
for their children, that's fine. (although I would pursue other remedies with them 1st---one that does not expose their young developing lungs to a possible decline in lung function and COPD. ).
I will adamantly stick to children not being mature enough to purchase addiction/dependency treatments on their own, nor being able to do the critical thinking necessary to make sense of research on flavorings, reduced lung function, etc. and apply it to themselves.
So I am in 100% support eliquid not being sold to minors. Nor vape gear.
... those led to real smokes at 12 years old 
... which led to eCigs at 48 years old 
