I'm lucky, as well. And I have to say, I feel very sympathetic to those who don't have anyone, or barely anyone, to support them. I imagine it must be hard at times. :/
My mom buys be special foods, vegetarian/vegan food stuffs. And my sister's don't really 'care'. It doesn't make any difference to them, really. It's my way of life, and they have their own way of life. My family doesn't eat a lot of meat to begin with, so it's not really different. I usually have a different meal than my family, or mine will be 'safe', while they have meat in theirs.
And my outside family, some of them forget sometimes, though I've been a veggie for 10 years. x_x
But it's different to them. So I guess I understand, but, eh. x3
(I feel I said 'different' a lot in there. xD)