The title suggests some sort of study involving more than one person, the content isn't a study, it's an anecdote.
Also, your "bottom line" is worse than patronizing, it's bullshit. I have friends that I talk movies with. I have other friends I talk music with. Others I talk about technology with. Even others I talk about relationships with. None of my goals in knowing and interacting with those people include "get advice from them and become a better person".
Have I become better through interaction with all of them? Of course. But that's expected as long as you are receptive to changing and you have friends that are competent.
Also, your "bottom line" is worse than patronizing, it's bullshit. I have friends that I talk movies with. I have other friends I talk music with. Others I talk about technology with. Even others I talk about relationships with. None of my goals in knowing and interacting with those people include "get advice from them and become a better person".
Have I become better through interaction with all of them? Of course. But that's expected as long as you are receptive to changing and you have friends that are competent.