Despite the somewhat dire circumstances, Obi-Wan can't help but place his hands on his hips and give the young man an exasperated look. He thinks it must be genetically coded into all male DNA to make them stubborn idiots when they're young.

"Yes, of course you can." He doesn't even try to hide his skepticism. "Here, come on." With that, Obi-Wan moves forward and takes the young man's arm, wrapping it around his shoulders and then wrapping his own arm around the boy's waist. "It's several miles, and you look like you're about to fall down and eat sand."