Final answer:
Many people who are not vegetarians might opt for vegetarian entrees when dining out due to health concerns, sustainability, or flexibility in their diet, aligning with flexitarianism principles.
Step-by-step explanation:
The question points towards the concept of flexitarianism, a term often used to describe those who are primarily vegetarian but occasionally eat meat or fish. Given the insights provided, it is plausible that many people who are not strictly vegetarians might choose vegetarian entrees when dining out for various reasons, including health concerns, sustainability, or personal preference.
While the study by Lusk and Norwood emphasizes the importance of meat in consumers' diets, it also indicates current vegetarians in America are a minority. Moreover, the concept of flexitarianism suggests that individuals can balance occasional meat consumption with predominantly vegetarian choices, which aligns with the idea that non-vegetarians may often order vegetarian dishes.