To me at this point, it seems Sora is about where Terra was in BBS (minus the darkness). He's basically qualified enough to be a Master, and could probably perform the Rite of Passage Ceremony for someone. The only problem I could see there is if not having the ceremony performed for him somehow stops him from doing it for others
Also, although, it wasn't technically his at the time, Mickey did have that (forgot the name) charm thing in BBS that let him travel to worlds, so it wouldn't be out of the question for Sora and Riku to receive something like that, as using the Lanes Between without armor is a no-no
I don't think the ability to perform the ceremony hinges on if you have received it yourself, but more on if your heart is so strong and accomplished with the Keyblade that it can recognize other hearts worthy to gain the ability to wield.
Beside that, Sora practically indirectly got the "letter of recommendation" which the ceremony basically is already way back when he was just born.Due to the special
connection he shares with Ventus' heart (and the sheer closeness of that connection) his heart gained the ability way back when he just forged the connection. That's also why Ventus' heart being located inside him does not matter anything on his ability to wield. As long as the connection between Sora and Ventus is intact (and I see no real reason why one of them would want to break the connection) there shouldn't be any problem.
When Xigbar claims that the Keyblade didn't choose Sora it is just more of his trolling, the blade itself
did choose him in Hollow Bastion in KH 1 (for good).
Uh, you do remember that Mickey took the star shard without Yen Sid's permission and just ran off just like Ventus, don't you?
He wasn't assigned it or allowed to take it with Yen Sid's consent.
During this era gummi ships seem to be the state of the art, as in KH 1 and 2 Mickey is indeed said to have his own gummi ship apart from the one SDG use, we just never saw it.
Who would have thought that being a duel wielding punk kid, who defeated the Org., would consider himself the best there ever was. I think his cockeyness is understandable, but he also deserved to fail. Sora is kind of an idiot.
That actually was the somewhat redeeming feature: Sora
also acknowledged that he didn't do that alone.
Sora may be an idiot in some fields, but as Ansem the Wise points out in the ending of DDD his heart is pure and child-like, which enables him to eventually gain the power to revive and recreate lost people, to which Ansem's data is a sort of manual.
It's just like that in order to be able to develop and accomplish that power Sora needs someone to watch his back, which is by now practically Riku's designated role.
I really don't think he considers himself the best. He's just confident that he and his friends together can handle anything thrown at them (which is kind of a major theme of the series). Also, the reason he fell into the Org's clutches was because he was chasing the dream projections of everyone tied to his heart. Roxas seemed to hint that he knew what was going to happen, so its possible the others knew as well. So, unless those were fake projections made by the Org, Roxas is kinda an asshole for letting that happen to Sora lol
While that may be true the fact that he overestimated his own resilience and went stubbornly forward despite knowing all the danger still stands.
Like already said before, the reasons why he chased the dream projections are understandable, that he choose to follow them with the enemy right on his heels was however an error brought forth by not thinking things through.
When did Roxas hint anything about that? The only things he ackknowledged were that while their roles (in terms of simple
existing) could have been switched (y'know, if Roxas had decided to go serious in their battle in KH 2 and pull a Vanitas trying to take over as the dominant consciousness in the body) it wouldn't be the same result and that it
has to be Sora who will tackle the next task, namely saving everyone.
That's something Roxas with his new grown heart could not have accomplished as Sora has more connections at hand and it is even more reinforced after Sora tells Roxas that he should be his own person.
Then Roxas repeats "
That's why it has to be you.". It's the love Sora has for everyone tied to him that will make it possible, also stated by Ansem the Wise in the end.
So if Roxas "knows" anything at all (hey, his consiousness
sleeps after all!), it is that Sora has the power to end his and the other's suffering, but not so much about the plans of the Xehanorganisation.
He's sleeping inside Sora, how should he know about anything that's going on on the outside? Not to mention the Xehanort's getting Sora wouldn't help him at all.
