Vegetarians choose their lifestyle for different reasons:
- Health reasons, as described before. They were simply brought up by their parents as vegetarians, and so their stomachs become used to that lifestyle. Any sudden dietary changes will make them sick because their bodies can't handle it. However, they can slowly
start eating meat and become adjusted. Human adaption.
- The impact it has on society, as Smarty described. It pollutes the environment, the animals are treated just as bad as a cornfield (and do you really care if someone chops down a cornfield?). The animals are fed nothing but crap to just keep them alive, and are injected with steroids in order to buff them up for more meat.
- There's some that choose it because they care about animals. Yeah, sure, there's PETA, but believe it or not
there are actual humans on this Earth that look at a cow and say to themselves "I wish you didn't have to die just to feed us, you deserve a life too"
- Some people are just sickened by it. To them, it'd be like eating a human - meat is meat after all. Do you eat humans? You probably don't, so I hope you understand their opinions from that perspective.
- Cultural reasons. There's religions that don't allow you to eat meat.
- And then there's people that just like it. Sure, they might try meat every now and then, but they'd much prefer a salad, pizza, pasta, or something else. Pizza's damn delicious.
There's many other opinions which I can list, but I won't get into it any further. I think what we're trying to say is be more open-minded. Humans are built as omnivores, but they don't have
to be omnivores. We have a choice to be carnivores, vegetarians, or both. It's the same as saying you dislike gay/lesbian people. Sure, we're built so that males and females can mate, but there's some that don't do it that way.