I have a head of hair going for about eight years now myself. My hair has been a part of my personal identity for a very long time. It's also related to my complexes as well. When I had it shaved before, I actually shed tears. (Even if it was a sharp look...) I have also always considered myself fairly aligned with nature.
However, I've been considering cutting it in the near future. I have been going through some changes and feel that I need to break away from my previous identity a little.
With that said, there should be a connection between identity and appearance, and how the two resonate. I think there's a case for whether one is bald or has flowing locks, that if it doesn't feel aligned with your inner self, that it could inhibit many kinds of connections. Unfortunately, I'm not well read myself and am going by intuition.