My sister is a vegetarian.  She calls herself a carbotarian though, lol.
Interesting! Does this follow her religious beliefs? Some are vegetarians due to their stance on animal rights.
No, it is not due to a animal rights stance.  She simply has never liked animal protein at all.
Oh ok! So more due to personal preference or health related then. Does she have any favorite vegetarian dishes?
yes, she just doesn't like the taste.  She prefers crackers and cheese, lol.  I wonder when vegetarianism gained popularity.  never looked into it.  
Well it has roots in ancient civilizations located in India and Greece. So a long, long time ago!
Makes sense that it originated in India (cows being sacred, etc.).  I didn't know about Greece.
Yeah!It's a respected living being there! I bet it's also hard for some vegetarians to eat packaged and processed foods that contain trace ingredients of animal products.
So true.  She always looks to see if caisin (spelling?) is in cheese.  Can't remember what the details are about the ingredient though.
I'm not sure, but yeah I am sure it is harder to eat some cuisines in the United States than others!