Because all the meat I eat is shit meat. I don't think any meat I eat is good, even in moderation. I mean, maybe chicken, but I eat beef a lot more. Bacon is a few times a week, but only when I make a bagel-breakfast sandwich with one large egg and a slice of cheese. I'll put two strips on there.
I may "cheat" a bit and eat some chicken here and there. But the way it works with me, and I'm sure with most humans, is if I try baked chicken (which I have) I find it rather flavorless. If I eat it one time, two times, I'll manage to have an aversion to chicken, assuming baked is the only way I can eat it. After about a week of not eating chicken, and cutting out red meat as a whole, I can handle going meatless.
I'm thinking this because I'm like this with cigarettes. If I'm so busy that I don't have time to think about stopping for a smoke break for about 8 hours, I won't really crave one afterwards. It's just after eating a meal that I'll feel empty without having one, but I've even made it past that point many times too. For me, going about 36 hours without a smoke usually dampens my cravings from there on out. Of course, at some point, I'll have one out of habit (not need) if I drink or simply hangout with friends and we talk. That would trigger me to get a smoke out, like eating a meal does.
I once went about four months without a mg of nicotine in me. Of course, I was at home with my parents and I wasn't having them find out. But just being at home and my parents around, it stifled the cravings then too. Even after eating, I may reminisce of the times I smoked after a meal and might want one, but when I realized there was no way for me to inconspicuously step out the house and have one, I would continue on without thinking about it again.
I'm hoping the same principle applies towards all the bad foods I eat. I've heard others say similar things about giving up dairy, especially cheese, and refined sugars (especially soda). I can vouch for the same for cigarettes. And I know if I notice even a slight change in energy, straying from my usual slob behavior, it'll be multiple epiphanies for me as I get more energy.
I'm not excited to make a change or save animals or eat less or lose weight. What's inspiring me the most is hearing people mention their huge change in energy. And their mental state. Maybe I'm still in the moment, but I can feel the toxins in me from all the garbage I eat. Hell, when I think about it, I can list every food I eat and why it's bad for me and just visualizing their detrimental effects on me has me excited to visualize them just being shat out of me and replaced with....I dunno what.
I'm at a point now with school that I'm frustrated with the work, feeling unmotivated, lazy, etc. Sure, some maybe learning skills, but I feel a poor psyche from a poor diet has a lot to do with it and could be the fastest remedy to a lot of issues.