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.
Packaged and processed foods, such as cakes, cookies, candies, chocolate, yogurt, and marshmallows, often contain unfamiliar animal ingredients, and so may be a special concern for vegetarians due to the likelihood of such additives. Feelings among vegetarians may vary concerning these ingredients. Some vegetarians scrutinize product labels for animal-derived ingredients while others do not object to consuming cheese made with animal-derived rennet. Some vegetarians are unaware of animal-derived rennet being used in the production of cheese.
Semi-vegetarian diets
have ideas. I never had time to dream about being anyone else. I had to work. I haven't just sat back and thought of myself or my ideas or what I wanted to do ... I've kept working. I don't have time to worry about who I admire or who I identify with. I never had it easy. I'm not at all like you ... all those people who had it easy."
In economic terms, it has been contended that the counterculture really only amounted to