Oh snap, I was raised vegetarian as well - from 1974 onwards! So though I do eat meat now, I know my way around a vegetable and I'll cook vego pretty much 6 out of 7 days a week, if not more :P
I think these days kids have more exposure to vegetarian or at least different diets. It's often dependent on how they were raised - the Dad scathing about vegans and eating meat and potatoes and peas is hardly going to raise a child who appreciates a good vego curry.