Clearly the man does not intend to offer him a chocobo. The very fact that he could go riding off on his own would be unacceptable. Not, of course, that he could ride. With but one arm to his name and no familiarity to a bird it would be an impossible task.

"You surely could not trust me on my own were I to walk. You would have to have guards around me, and they would have to be extra attentive which would be draining. It seems a foolish gesture when it seems unlikey you mean to deliver upon it."