[javanissen]

I disagree. I have one vegan friend. When we go out to eat in a group, we prioritize restaurants with good vegan options, and we often end up at a place that specializes in vegan food and the whole group ends up eating meatless meals. So just by her action, a group of four people consumes noticeably less meat over the course of a year. Is this a massive impact in and of itself? Maybe not, but it’s certainly not zero impact. And the idea that this story, played out thousands of times over across the world, has had zero impact on the corporations that grow, process, and sell meat is odd. Corporations have to sell their products to consumers; when consumer tastes change significantly, the corporations have to change their behavior as well.

[PrimeMcFly]

Most people are not willing to pander to a vegan like the group you describe though. Vegan communities are full of stories about how hard it is to try and find something on a menu they can eat when going out with friends.

And even though the people in the group you mention eat vegan food when out with a vegan, it doesn't make them vegan.