While there are health benefits to avoid meat, a lot of people doing it are not particularly health conscious.
It's just that it's a funny stereotype, the seed eating peace lover hippie. Just like the annoying moralist activist or the lunatic product abuser new agist.
But frankly, most veggies I know are just regular folks with regular quirks.
Do you mean a vegetarian? Never heard 'veggie' before. Heard 'veeg' (vege?) though.
Slang for vegetarian, yes. But I suspect that you know full well what parent meant, unless you’re not a native U. S. English speaker (even then, you could have just looked it up).
Therefore this is literally everyone's concern.
The rest talk about it about as much as you talk about not eating <something you don't eat for whatever reason> - viz. only if it comes up naturally.
Not everyone falls into a nice category.
Just because one is vegetarian doesn't mean they care about GMO, or being healthy, or any of that stuff. This type of classification almost always comes from someone who isn't vegetarian, and its a subtle way of prescribing how they think a vegetarian should think and act.
I am vegan and happy to drink Soylent. :-)
Personally, my motivations for not eating meat have precisely zero to do with any "natural" or anti-GMO stance, and everything to do with environmental impact and animal welfare concerns.