Started at 8... Older brother smoked me out. Now will be 12 years in sept. And personally I don't feel weird in fact I feel a lot smarter than "most" f the nonstoners around here. But I never tried hiding it my parents were dicks so I came home stoned and didn't care if they knew. Not that I'm condoning smoking at 8 or around then but I has had no negative effects on me thus far so who's to really say when?