There was a saying for years during the campaigns against smoking that if tobacco were a previously unknown commodity that were newly introduced today, the FDA would never allow it. But now they approve vaping, which may be as harmful, or even more harmful. The vapors contain tinnier particles that can get nicotine more deeply in the lungs.
The company that really got vaping off the ground, Juul, claims they did it to provide a healthier alternative to smoking, but that seems like BS and they clearly started marketing to children. Now vape units are literally blowing up and burning people's faces.
It affects all of us in higher insurance costs and second hand smoke and vape (yes, second hand vape is a thing, and dangerous). I think people should be able to do what they want, but the FDA has a responsibility to make sure consumable products are safe. Both tobacco and vape are not, so they are not doing their job. These big companies are paying off the government and that is not a good thing either.
Stupidity cannot be eliminated. However, it should not be encouraged, either.