I have a feeling that it's totally a cultural difference and this sort of attitude is more valorized in Japanese culture (culture of interdependence), but my American existentially-oriented self does find that kind of irritating.

Sasuke is a kid, but after all, so is Naruto, and the adults, interestingly, have a less paternalist attitude towards Sasuke than Naruto. But since Naruto is the main person harming himself through this, I just pity him, and yes, it does speak of a certain lack of perspective of Naruto that he thinks he can solve all these problems, but he is after all only twelve and has time to learn.