I never smoke. My oldest sister's fiancée, and my older brother do vaping, and my cousin Lisa, who I don't socialize with anymore, smoked for most of her life before quitting several years ago. I don't want to suffer like they do.
Yeah, vaping isn't safe. Probably very far from harmless. Very good for Lisa, who quit though, since that does require serious commitment and also toughing out the intense withdrawal and craving that most quitters have to suffer though. I do hope the others also quit vaping. And yeah, second-hand smoke has the same laundry list of terrible effects on people too, so...