>If you say "every person has two parents" they will think you are making a generalization about people, including hypothetical people who have not been born, a

>If you say "every person has two parents" they will think you are making a generalization about people, including hypothetical people who have not been born, ancient people who left no trace in history, and so forth. Sure, until you use the phrase, "every person in this room has two parents".