I have noticed that I am pretty much minority in this issue. Both among this forum, and among the general population. Appearance seem to matter people way too much
Now that I think of it, when I was at my teens, I did worry what other people think of me. That included appearance worries. However, I never wanted to impress anyone, just to maintain some standard level to fit in and to not be considered too weird or misfit. I don't remember observing myself from a mirror asking philosophical questions like "Is that me?" or "Does that represent me?" or thinking thoughts like "I am not that, not really" or "I wish I would be (insert your favorite physical quality)" (well, I have wanted to be more muscular, but that wasn't appearance thing, more like practical as I wanted to be able to do more physical labor).
Now as I get old, I still have "bad hair days" when I look at mirror, but I think it as an amusing event, not something that should trouble me or anyone else. I see some gray hair and droopy eyelids, but I am more worried about aching, or soon in decade or two aching, bones as they directly affect my life. I don't remember ever having a feeling, that I am not satisfied with myself and that I would want to be someone / something else. Even thought I do daydream, even to the point of power fantasies, I don't feel that I do it to dream of being something else, it is just "what if"-thinking, not "I wish"-thinking, or just fuming to get rid of temporary thoughts. I have few personality traits that I would like to get rid of, or change, but I don't think I have ever disapproved myself as a whole. I don't approve myself either, I just am. (Disclaimer: At least, this a way how I would like to see my attitude - in the reality I could be a very insecure person, but I just don't realize it or accept it)
Probably this has something to do with the fact, that a) I have (almost) never felt any real need to connect with people, so I have taken only little pressure from the said people and their expectations, b) my mind has a habit to strictly categorize things as separate issues, meaning that if I see a fault in myself, that is just a one fault and I, meaning a whole person, is a different, only weakly related abstract thing, c) I don't see people's disapproval from their face, posture, or tone, d) I am a white privileged male with no physical defects

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Furthermore, if we listen to audio recordings of ourselves, it won't match either... what we "hear" is influenced by bone conduction, whereas what other people hear is something different.
Ok. From that perspective, I totally agree that what others hear from me is not same that I hear from me. Same thing with conveying my internal life thru limited communication abilities.
