I've thought about begin a vegetarian, excluding meat from my diet.  Are you?
I am not and have never really even considered switching personally.
There are several reasons people switch to it..like political, health related, or for cultural reasons.  I just love animals.
I don't have an issue with animals, but aside from something domesticated there is little reason why I should not eat them.
I can't imagine being a vegan though.  I like eggs and dairy too much.
I wouldn't do either myself, but to each their own.
Being a vegetarian is hard too.  So many packaged and processed foods contain unfamiliar animal ingredients.