Ah, so that's the secret! A mere hair tie.

[ He beams. Of course he could pay attention to their clothing too, but in this instance, he was just so glad to see what he thought was a familiar face, he didn't even notice. Next time, for sure ...!

And their parents did it because it's adorable and they're adorable. ]

Good, now that that's settled then, I did just arrive. I would be pleased if you could show me the way! If it's a soft bed, I have little cause to complain.