Being childlike is very common and there is nothing wrong with it. Actually, there is a whole book on that topic (www.rejuvenile.com). I've personally known quite a few well adjusted, successful, healthy adults who: love Disney movies and theme parks, still skateboard, collect toys, still enjoy collecting comic books or watching wrestling, and/or love video games and other activities typical of children. I even know people who have planned their vacation time around the touring schedule of their favorite band or the release of the latest video games in their favorite franchise.

There is nothing wrong with being childlike as long as you are responsible about it. I don't think you need to consider feeling childlike something that is wrong with you. Give yourself license to be childlike, just learn to be childlike without being childish. Growing up doesn't have to mean leaving all of your childhood things behind.