Agreed. I have noticed this phenomenon, too. I’ve noticed it in general, but I also noticed it with my husband and his brother. Looking at pictures, there is nothing remarkable about my husband as a child, but the brother was such a cutie. Like Spurgeon and Henry cute. I think it’s the larger features that draw the comparison. As an adult, my husband is the looker and the brother is unremarkable. He has a young daughter who is cute, but I bet she will mature into a stunner. She has beautiful red hair with brown eyes - an unusual combo.
To bring it back to topic, you know how no one can keep straight the howler monkey lost boys? It won’t be long before people can’t keep straight this generation, especially since there is a clump of boys. I already don’t remember or immediately recognize the M boys. Poor Jessa when her boys don’t stand out and just run into everyone else.