I have a variety of ego states. Some are children, some teens, some adults. A prominent ego state of mine is a little girl and has come to therapy with me. She is from a very traumatic time in my childhood and so wasn't integrated very well. So no, I don't talk about "my inner child", but I definitely have ego states of various ages and themes (e.g. little girl of 6 who always experienced Dad's anger, or whatever).