Eating meat is way easier than eating balanced vegetarian imho. I've cut down on my meat lately and it does require more time and involvement to eat vegetarian. E.g. an easy dinner is bbq a steak and chuck out some salad, done. Our entire society is based on convenience of eating meat, to get the same from a vegetarian diet is a lot harder to learn, you really have to want to. I still eat fish and eggs for this reason, I'm not really sure how to go full vegetarian, I know its possible but its another level of work for me. There's probably a bit of FUD thrown around by the meat industry that you need protein and iron from red meat as well.