“Design Vitalizes Child-Friendly City” Theme Activity and Keynote Speech invited schools and organizations such as Tsinghua University School of Architecture, China Academy of Urban Planning & Design, UNICEF, etc., to conduct keynote speeches and roundtable discussions on the construction of child-friendly cities, ecological development, and design assistance for children's growth needs. Through interactive activities for children, the initiative aims to promote and popularize the concept of child-friendliness, fostering a child-friendly atmosphere.