Vaping is safer than smoking.
Let's say I'm Phillip Morris. I sell Marlboro and a slew of other cigarette brands. E-cigs come along, offering a safer alternative that is importantly much more cost effective. They're eating my lunch.
How do I kill this industry? I buy Juul. I remove the fruity flavors (which people of all ages enjoy more than tobacco flavors) and I claim that I'm doing it to protect the children.
Juul is now much worse off; big tobacco gets to claim that it's looking out for the kids; last step is to manufacture a public crisis to have cover for over-reaching legislation that bans what would otherwise be the least harmful of all age-restricted products.
Keep smoking.