I don't own. Kay? Written because they're so often forgotten, the sidekicks and allies, even though they're there from start to end.
Watchdog.
He is the one to stay behind when someone else joins the party.
He does not mind, knows that the others just feel like they have to run to places and stuff, adventures and fights.
Sora's a good kid, a good friend, but he's the hero and he's gotta go onwards, and Donald's far too impetuous to stay back and wait. That leaves him, to take care of supplies and securing a place to rest, when the world's too big or the Heartless or the Nobodies too many to finish in one go.
Because, let's face it, he knows he's not that good in battle. Sure he's the best when it comes to defence, and he's useful to keep a number of enemies at bay so Sora has some breathing space, and he can hold his own in a fight, but he also tends to get in the way. Not that he's really clumsy, but more that his style of fighting doesn't always mesh well with the boy's. So he stays, the rearguard, the watchdog.
He is not attack, not support. He is defence, he is the shield, the cover to which the others retreat back to. He watches them leave, and gives them his faith and his trust, and hopes with all his heart they'll find what they're searching for, and that they won't get too hurt on the way.
And because it's what he does best, what he feels the most comfortable doing, he remains behind, because even when the house is empty, someone has to keep it so when the others come back, it is ready for them, and so he keeps his stock of potions close at hand, just in case, just in case.
And so Goofy waits, fingers crossed, and keeps some place safe for the others.
He's the watchdog, the shield, the guardian.
It's what he does best.
.fin.
