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I don't have a huge problem with this, mainly because it's my understanding that there are like 700 toxins in traditional smoking and that nicotine itself is actually not considered very unhealthy.

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Nicotine use supposedly causes "altered development of cerebral cortex and hippocampus in adolescents." That seems very unhealthy. [1]

Also, the liquid refills can contain an acutely toxic concentration of nicotine. Enough to kill a small child with as little as half a teaspoon ingested or absorbed through the skin. [2]

1. https://www.ncbi.nlm.nih.gov/pubmed/?term=25794473

2. https://www.aappublications.org/content/early/2014/12/12/aap...

This is one of the major downsides of the (overall good) transition to cannabis use in young people.

Nicotine is the addictive part. The other 699 toxins are only unhealthy contamination.

(Anyway, I'd like to see a similar survey about traditional cigarettes.)

Tobacco also contains some fairly addictive, antidepressant-like compounds called Monoamine oxidase inhibitors (MAOI).

Not really, nicotine isn't very addicting, its similar to caffeine in a lot of ways

Unlike caffeine, nicotine and cocaine both cause vasoconstriction. Anti-drug propaganda aside, none of the 3 substances are particularly addictive and all three have they exact same withdrawal symptoms.

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