My wife and I do. We have an 18 month old daughter, and never smoked inside the house. I don't worry too much about making any mental impression on her just by seeing us smoke (on the porch) or vape in the house. Not like she's never gonna see someone do it. I can't give all the calculated data and research on whether it's 100% safe or harmful, but i've read alot online (search google) and made my decision. We'll vape in the living room, kitchen, open area places like that around my daughter and i think it's fine. We'll even vape in the car with our daughter, but we both take extra precaution to blow the vapor out the window. I'd never vape in a confined space with her, nor if i'm even holding her. I only have 1 juice (MBV RY4) that leaves an "aftersmell", and I make sure not to vape that around her at all. I guess that's just a mental thing with me though, if no one can smell it, and can't see if after a few minutes, then I feel more comfortable with it.