We had a parade for the parents. Costumes included Tinker Bell, a paleontologist, Capt Hook, a witch. Usually we have one or 2 children that are unsure of the excitement, seeing friends in costumes, wearing a costume, etc. Today there was one who needed his mom to walk with him in the parade. We are flexible. 4 years old is little. Sometimes it is easy to forget that. They need hugs, reassurance and love just like toddlers do.