This chapter explores social-field experiments of cybernetic avatars (CAs). Previous chapters introduced the research and development initiatives necessary to achieve a society where individuals can actively participate remotely by operating CAs. To understand the feasibility of social participation through CA utilization, one approach is to conduct experiments in real-world scenarios and evaluate their effectiveness. In the Avatar Symbiotic Society Project, a variety of real-world validation experiments are being conducted across different countries, industries, sectors, teleoperators, and user demographics. This chapter outlines the essential elements for conducting social–field experiments and highlights those done in the fields of nursing care, mental health, and elderly support.