The document provides guidance on preparing siblings of different ages for the arrival of a new baby. Younger children under 2 may not understand changes, while 2-year-olds may become clingy or regress due to needing stability. Children ages 3-4 like to listen to the baby's heartbeat and feel kicks. School-aged children have practical questions about how the baby was conceived and will be born. Adolescents may be embarrassed by their mother's sexuality or worry she is too old. It's important to answer children's questions and have them interact with babies to understand what to expect. Sibling classes and a hospital tour can also help prepare them.