I think that the new outfit is supposed to be a sign of character development. Try not to forget that the franchise is made by Japanese people. And in Japanese tradition, fictional characters shorten their hair, change their hair style, or their appearance. Only when they undergo development in character. Not to mention that there are rumors that Sora will be at least a bit more mature in KH3.
Besides, Sora bases what happened on what others say, and rarely tries to understand things for himself. Also he has been overly trusting, and needed a reminder most of the time. And they are no different from the following.
Kairi's heart being inside of him (which was never fully explained), when Sora has been seeing her, and hearing her voice during the whole time. At the Deep Jungle tree house, at Merlin's House, and at the First District after returning from Neverland.
Not getting that Leon and the gang are just figments of his memory, when Marluxia said that Traverse Town is just an illusion created from his memories.
"Namine's good luck charm" would have been the first clue that Sora has been receiving false memories. Seeing that nobody wears the same pants for several years. And that it could have been a reminder IF the memories are real. ... Then again, Sora's memories were being corrupted at the time of his first fight with Larxene.
Sora doesn't get the picture that he unlocked the Underdome.
After the Battle of a Thousand Heartless, Sora learns about how a slain from the Keyblade releases a captive heart. Which he should have learned by now.
Sora doesn't understand who Roxas is exactly, until Riku told him. This shows how easily his memory "sleeps".
For a few moments, Sora mistakes some Realm of Sleep residents as the real thing. Most notably, Jiminy, Tron/Rinzler, and Mickey.
Speaking of Tron, Sora clearly didn't keep in mind that Space Paranoids is a copy of The Grid.
When Sora first entered the sleeping Traverse Town, he instantly puts his trust in Neku and look where it got him. Even Neku pointed out that they only just met.
Pretty much of TWTNW, including the Namine illusion. When he's supposed to remember that she joined with Kairi.
"I don't get it", "What do you mean", that's mostly all he ever says. Hopefully we'll be hearing less of that in KH3. ... And maybe Hades will say "you still don't get it", if he appears in said game.
I think that the new outfit is supposed to be a sign of character development. Try not to forget that the franchise is made by Japanese people. And in Japanese tradition, fictional characters shorten their hair, change their hair style, or their appearance. Only when they undergo development in character. Not to mention that there are rumors that Sora will be at least a bit more mature in KH3.
Besides, Sora bases what happened on what others say, and rarely tries to understand things for himself. Also he has been overly trusting, and needed a reminder most of the time. And they are no different from the following.
"I don't get it", "What do you mean", that's mostly all he ever says. Hopefully we'll be hearing less of that in KH3. ... And maybe Hades will say "you still don't get it", if he appears in said game.