Smart home technologies have become common in family homes, making even young children inevitable users of these technologies. However, these systems are typically designed for individual adults, creating family tensions and conflicts over children's access, safety, and appropriate smart home use. To investigate children's and parents' individual and joint smart home needs and dynamics, we conducted an in-home study with nine families (children aged 6-11). We identify four key parent-child tensions with smart home technologies, including struggles over parental protection versus children's autonomy, differing views on technology's purpose, disagreements over technology-enforced routines, and children's vulnerability to embedded commercialism. Our work reconceptualizes parental mediation as a process of ``tension management'' rather than the application of static rules. This research challenges the dominant individual-centric choice architecture in smart home design, calling for a family-centered approach that acknowledges and adapts to the fluid, complex, and negotiated reality of modern family life.
ACM CHI Conference on Human Factors in Computing Systems