I don’t since I really only know about what happens in the west. Here most people seem to eat meat 2-3 times a day, that seems far too frequent to be sustainable. Especially if you consider it immoral to live a lifestyle that couldn’t realistically be sustained if everyone on earth had access to it.
Even in the west it varies a lot. As a vegetarian who recently visited Florida it seems that American eat quite a lot more meat than people in the UK. Case in point - my family wanted to go to a steak house in Florida (they aren't vegetarians) but the one they wanted to go to didn't a single vegetarian item on the huge menu. Even the salads and mac & cheese had bacon added! We didn't go. My local steak house in the UK always has several vegetarian/vegan options.