Hmmm, I think it has a lot to do with people themselves. Guess I just think some people want attention or wanna look different and I kinda get annoyed when somebody, and again it doesn't have to be a vegetarian but in my experience it usually is, starts talking and acting like he/she is disgusted by the fact that I eat meat (or some other type of food)...just making me feel like I'm eating they wouldn't touch with a ten foot pole - somebody said it - like they're better than me.
Maybe I should eat more vegetables but I think you shouldn't drop meat completly of your menu, but that's my personal opinion and that has nothing to do with this:
I do hate people who raise their children to be vegans - then you see those children that have no energy, always look tired, have growing problems, have bags under their eyes etc. That's is just insane, don't force that on your children, let them eat equally all types of food, they need it to grow up properly and later they'll be much more adaptable to eat whatever they like.