TV and movies are always slow to adapt to new technology. When it came to cell phones in particular, movie plots for years basically tried to pretend like nothing was changing in people's habits and the way they communicate. But with other stuff too, screenwriters seem to be on a several year tape delay when it comes to incorporating new devices into their stories.
Vaping is no different. Hollywood hasn't quite figured out what to do with vaping yet. Most movies currently treat smoking as something that people did in the past. Or if it's a modern character smoking, it's treated more as a telling character trait than as an incidental habit. Smoking is meant to be a cue about the character. It says that they're particularly stressed, or choosing to live in the moment, or just exceptionally badass. And that's the mold that TV and movies has now adopted to portray vaping as well. Vaping is often a character's evil tick, affectation, sign of pompousness, etc. It's not shown as an ordinary activity that is just part of people's lives.
That's why I think Neighbors was one of the first movies to take a step toward normalizing vaping's image. It's a 2014 movie starring Seth Rogan and Zac Efron. It's pretty funny actually, and I recommend you see it if you haven't. But all you need to know for this is that Efron plays a fraternity president, Teddy, who's pretty cool if a little too much of party boy for his own good.
There's really only one shot of Teddy vaping, when he's sulking in a wheelchair thinking about how he's not ready to graduate from college. It's very in-character for him. We see Teddy smoking and drinking various intoxicants in random scenes throughout the movie. So even though another character says when he's vaping that it looks like Teddy is "villianing out," it's not necessarily about what he's puffing on. Vaping is just another sin in the mix. The shot of him with a vape rig is no different than ones of him smoking an enormous bowl that looks like a Gandalf pipe or drinking whiskey out of a tea cup on his porch.
Of course, it's not made explicitly clear that Teddy's pulling on a nicotine vape in that scene. It's possible that his vape is supposed to be a weed vaporizer. But honestly the fact that they don't bother to explain it makes it feel all the more normal.
And is it just me, or is it a little odd how Efron wants so badly to be a comedy actor? His world class handsomeness always ends up hovering over him when he's doing schtick. And the comedies he's in often act like the funniest thing Efron can do is take off his shirt. Anyway, just a random thought. I really did mean it when I wrote that Neighbors is good and you should check it out. And you'll get a little taste of vaping cinematic history.