So let's say you see or meet a young-ish single mom. She is in her early to mid 20's. She is white.
She has 4 kids with her, introduces them all as her kids. A 5 year old little girl, same skin color, same hair and eye color and looks a lot like the mom. 2 year old biracial boy who is very dark skinned, has brown eyes, and curly dark brown hair, 6 year old Hispanic girl who has thick black hair, dark brown eyes, and darker skin than mom, and a 3 year old asian boy with dark hair and dark eyes.
Do you think they're adopted? not her kids? All different fathers? What do you assume? Be HONEST, even if you have to go anon.