Gamerescape Interview: Summons, Chocobos, Train Tracks and Rocks

[Nabiri]

But if you enable the chocobo to jump... As yourself this: can the goobbue jump too? You have to remember all travel options should be treated the same, otherwise, who would ever want to use their goobbue mount again? (For those that actually like their goobbue mounts.

If a chocobo could jump a goobbue should be able to as well, but I don't think they're physically capable of doing so.. lol (Btw I would LOVE choco jumping.)
Can you imagine them trying? :x
Do they even have knees?? I've never looked. XD