When I was a traveling consultant, meal and lodging budgets were generally so bad that it really only made sense to eat a single meal per day anyway. While WeWork might be on a moral kick about this, I can only see it becoming common if companies can use it as some kind of cost cutting loophole, in much the same way many have a no-alcohol policy. Yes meat will continue to be a rare and expensive thing, but humans have been eating it for a few millennia now, I have a hard time seeing that go away in the 100 year picture.