I'm so stoked to see this thread and that it's grown so rapidly!
I stopped eating most meat when I was nine, except for poultry. I've always been very compassionate about animals and I grew up with many vegetarian/vegan aunts and uncles, one of whom was an animal rights activist. They'd babysit often and I'd ask them questions about it. Something my uncle said to me when I was very young has stuck in my head ever since, "If you ever saw the inside of a slaughter house, you'd change your mind". Then my aunt and uncle took my cousins, brothers and I camping and I hesistantly tried a tofu dog. It tasted very much like a regular hot dog and I thought "hey, this may not be so tough!". My parents were very supportive of my decision, even though both of them ate meat. Then I gave up poultry at around 12 years old. That's when I really started doing the research on the treatment of food animals and it really reinforced my decision.
I'm 25 now, and technically I'm an ovo-lacto-pescatarian. I would like to give up fish in the near future. I am also struggling with finding a more humane means of dairy consumption. I would love to have a cow or goats in the future and be able to supply my own dairy. As for eggs, I won't buy them anymore but I definitely enjoy my own gals' eggs! Probably within the last five years or so I started eating all of the TVP and soy "meats", tofu and all of that stuff. There are some really amazing options out there!
My favorite foods are ANYTHING meatless! I looooooove food, I love cooking, and I really enjoy trying new foods.