But instead of that lasting forever since their situation never becomes so that they can afford to buy a nice home, which is the case for many people, they only have to deal with that for 10 years at which point they get a lot of choices for nice homes at an affordable price.
Or simply that a diet not meeting the nutritional needs can be correlated to worse athletic performance. And since meat is dense in nutrition, and since places with less meat available sometimes is low income, I think it’s plausible.
I've heard about, and tried to get into the Discworld a few times, but it never really happened. I think I tried Guard! Guards! twice. Maybe I was in a different headspace, or maybe it was just not for me. But then I tried Small Gods, and it's the best thing I've read since (the nutrition label on the back of) sliced bread. No, really, it's lovely! I'll be done tomorrow according to my Kobos statistics, and then I just need to figure out what I'm gonna read next. Cannot wait to find out about all the things out there in the Discworld that I don't know about yet.