Disposable vapes are indefensible. Many, or maybe most, of them contain rechargeable lithium-ion batteries, but manufacturers prefer to sell new ones.
To make a point about how wasteful this practice is—and to also make a pretty rad project and video—Chris Doel took 130 disposable vape batteries (the bigger “3,500 puff” types with model 20400 cells) found littered at a music festival and converted them into a 48-volt, 1,500-watt e-bike battery, one that powered an e-bike with almost no pedaling more than 20 miles. You can see the whole build and watch Doel zoom along trails on his YouTube video.
In my experience many of the people who haven’t quit are self medicating for attention or depressive reasons. Of the folks I know who vape about half were diagnosed with ADHD later in life (30+) and quit after finding a stimulant medication that worked for them. The rest are unmedicated and self medicating with nicotine and coffee or energy drinks. Self medicating is overlooked in virtually every discussion about nicotine and I’d like to see it considered more often when the topic comes up.