I wouldn't necessarily say I felt NO kinship to Duncan. I definitely saw a little bit of myself in the character, I am just saying I wouldn't necessarily be watching this movie and saying "YES! That was SO me." I mean, I'm about the most ridiculously shy and socially awkward sumb*tch you could want to meet and even I was sitting there internally screaming "DUDE! The neighborhood 'hot chick' is talking to you. At least say SOMETHING." Not that I don't understand. Where I in his shoes, I'd be a nervous wreck, but even at my most awkward stage of life, I still would talk to somebody if they actually engaged me in conversation first. I sort of found myself half wanting to smack him upside the head because I'd have KILLED for some attractive young girl to actually make an effort to talk to me when I was around that age.
That and, again, like I said I found his early attempts at showing personality to be uncomfortable and annoying. Again, to me instead of him coming into his own, it struck me more as him trying to act like other people. Don't get me wrong, I get this was part of him trying to find himself. It was just sort of uncomfortable and awkward to watch, but I do think that was kind of intentional. I think it was meant to look like he was copying those around him, but it was obvious that it wasn't really him. It wasn't until later that he started to discover himself. Rather than just trying to be some of the characters he looked up to he started to be himself. He started instead to discover who HE was, not just emulate those he thought he wanted to be rather than himself.
Discovering who you are, where you fit in, is I think something we all struggle with. Especially at that age. Honest to God, I still sometimes wonder where the Hell I fit in, or IF I even fit in at all. But, like Duncan has started to, I've at least become pretty well aware of who I am, and I've learned to be myself rather than to try to emulate who I think I should want to be.