For me, it took two trys with my parents, and on the second one, they excepted it. The first time I tried was a year ago at Thanksgiving (can't remember what happened to make me want to be vegetarian then...hm) and my parents, just flat out didn't like it. I think I may have pulled it off for a week at the most, and then I got so sick of my aprents nagging me and giving me a hard time about it, that I started eating meat again. My second try, was about...I would say two months ago. I stopped eating meat, making excuses at each meal, then finally my mom asked me "Are you becoming a vegetarian?" and I told her I was. At first she complained, but after a few days I showed her it would not be a pain on her part. She has started to cook vegetarian meals, realizing, my decision can help her with her own health. She has excepted it now, and realized me decision isn't going to change. Really I'd say the biggest part of becoming vegetarian, is informing your family members about it, so they can be comfortable with your decision, other wise it is impossible. My mom would never let me go vegan though. I think I'll want to when I am living on my own, and buy my own food.