They know, they don’t care. It was hard enough to convince people, especially kids, that smoking was bad for you and that was with something that made you hack up yellow slugs, and stank. I would guess that convincing people that vaping nicotine is harmful decades before the harm is readily apparent, in ways that are not well studied will be essentially impossible.

Juul is just the perfect intersection of portable, concealable, and apparently consequence-free. Kids will use it, and I don’t see a way around it. Good luck to the poor little bastards.