The parents started smoking to be COOL and got hooked. That was decades ago when they didn't know smoking causes cancer and KILLS ABSOLUTELY!
Fast forward. Kids smoking flavored pieces of plastic/metal with some tobbaccy inside? To be cool too?
Well now these vapists are suffering from lung conditions. They must feel really cool to have a grownup health condition. What's left for them to experience? Bring it on. Everyone dies eventually. So they die younger sooner. So what?