As autonomous vehicles (AVs) emerge as new agents in traffic, it becomes imperative to understand how they can be introduced effectively and acceptably. AVs enter existing socio-technical systems, where members of various social communities are already present, including residents rushing to work, tourists strolling around, and workers cleaning the streets. This workshop seeks to explore the intricate dynamics of introducing AVs into established social systems within shared spaces. It aims to understand what the needs of pedestrians, cyclists, drivers, and passengers are, and how they interact with each other when AVs enter the social system. Through presentations and interactive activities, this workshop will provide a platform for researchers, practitioners, and other stakeholders to exchange insights, share experiences, and co-create strategies relevant to the integration of AVs into the social systems of shared spaces. The workshop aims to discuss the benefits, risks, and design challenges associated with integrating this emerging technology into our everyday lives.