The only time I am really aware of that part of me is when I'm am for some reason in the throws of PTSD symptoms. At those times my thoughts and feelings can revert to the age of my trauma. I don't consider that particularly healthy or rational at all, but it happens nonetheless. I mostly am and act and feel as the adult that I am, which I firmly believe is the healthiest and sanest place to be for me because as an adult I am much more rational and based in reality. As the adult that I am, I am perfectly capable of enjoying life, being "playful", having a certain idealism, etc., but the baggage of my early traumas doesn't take over and skew my thoughts and feelings. Much prefer to work from the "adult" me.