People become vegetarians for all kinds of reasons, because there are many reasons to do so.<quoted text>
It's a matter of opinion, nothing more.
Some people just don't like the taste of meat, so they become vegetarians.
The funny vegetarians are the ones that still eat fish...
Someone who eats fish is not a vegetarian, and if they call themselves that, they are mistaken. But I know what you mean. I eat dairy, so I'd be just as wrong to call myself vegan.