[colanderman]

Your comment is correct, except that veganism is not a "purity urge", despite popular media. It probably is for some, but for most it is an ethical, health (as in, need to avoid cholesterol/dairy/etc.), or environmental concern. There's usually an external motivator.

[michaelbrooks]

I became mostly vegan (also known as flexitarian) because I want to reduce my meat consumption due to climate change. I now cook vegan food as much as I can while eating meat every once in a while.

[ptah]

it is health and environmental to me. in practical terms it is no different from "purity"