Syd Castillo has supported regional initiatives related to safeguarding and the creation of safer environments for young people and volunteers. His work includes supporting workshops, policy implementation, organizational assessments, and capacity-building activities focused on promoting awareness, accountability, and protection within youth-serving organizations. He has worked with volunteers, leaders, and partner organizations to strengthen understanding of safeguarding principles and encourage safer practices in programmes, events, and organizational systems. These efforts contribute to building environments where young people feel respected, protected, included, and supported in their participation and development.

Syd Castillo has supported initiatives that encourage young people to contribute to sustainable development, environmental awareness, peace-building, and community engagement. He played an active role in supporting Dialogue for Peace initiatives and regional educational activities that promote understanding, inclusion, intercultural dialogue, and peaceful coexistence among young people and communities. Through workshops, learning activities, and collaborative programmes, he helped promote the integration of the Sustainable Development Goals and peace education into youth programmes and community initiatives. His work supports learning opportunities that encourage young people to take active roles in addressing social and environmental challenges while promoting values-based leadership, community participation, and responsible citizenship.

Syd Castillo has supported initiatives related to Scouting in Humanitarian Action, focusing on community resilience, disaster preparedness, and support for communities affected by emergencies and crises. His work includes supporting educational activities, capacity-building initiatives, and regional collaboration related to disaster risk reduction, emergency preparedness, and humanitarian response. He has also contributed to programmes that encourage young people and volunteers to take active roles in community service, resilience-building, and recovery efforts. Through partnerships, workshops, and community-based initiatives, these efforts help strengthen preparedness, volunteer action, and community support in times of need and uncertainty.