When ‘vaping’ first came about, I was dubious, but a non-smoker by that time. Thus I was dismissive.
Then my wife switched from cancer sticks to vaping overnight. Many long nights of research followed.
Conclusion: As with everything else, in moderation and as a therapeutic - primarily for breaking a nicotine habit - vaping is safe (assuming the ingredients are PG and without additives. The ‘juices’ ARE unregulated).
The problem is that smoking is as much a physical & emotional addiction as it is a chemical addiction. The same applies to vaping for most users, my wife included who, by the way, happens to be in denial about her respiratory problems (my $$ is on the vaping).
People should only vape to escape the cancer sticks (they work) and then dump the vaping which, by the way, isn’t much less expensive than cancer sticks when all costs are summed together. And who knows the long-term risks of the physical damage to the lungs which - in this post-covid medical environment - is presumably speculative and suspect.
We can only hope there’s adequate funding for further research of an unbiased nature.
I agree with you and your approach.