My daughter is actually one of my best friends. I'd hang out with her even if we weren't related. I sometimes joke that I diluted her mother's genes to perfection...
You're a wonderful person and you sound like a great parent. I have a good relationship with my parents today, especially my father. He and I are good friends. It's interesting, contrasted against the way he was raised and the relationship that he had with his father. Back then, the idea of a friendship wasn't even on the table.
Anyway, I have nothing to really add here. I just wanted to say... I'm on the cusp of becoming a father, we're expecting our twins this weekend. You've given me a lot to think about with your story in these comments. Thanks for that.