I've read it's a big issue among teens here (U.S.). They're trying to crack down more on underage sales and marketing. My brother-in-law used to vape--used it to stop smoking. Unsure whether he still does? I think there's this conception that it's a lot safer than cigarettes, but there's still health risks and addiction concerns, if it's a nicotine vape. Recreational cannabis is also legal in many states now, including mine, so I think lots of people will vape that, too.