Yes, of course, there are those who profess not to eat meat because they won't kill animals...remember Melanie's song "I Don't Eat Animals"? But there are plenty others who come to vegetarianism for other reasons, a purely health-conscious perspective being the foremost among them. Then there are also religions which observe vegetarianism.

And then there are other issues, such as the treatment of animals harvested for food. Even as a fully practicing carnivore I refused to eat veal because of the way they torture the calves to produce the 'tender, white meat.'