Naruto getting the rinnegan is totally the opposite of who he is as a character. Naruto is all about guts and scrapping his way through the difficult situations and jutsu's. The ongoing comment throughout the manga that a shinobi is not simply the jutsu he uses and can use, but it's about never giving up.
Jiraiya's mentions about what makes a shinobi:
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The 3rd's mention about what makes a shinobi:
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