Adults who experienced separation from parental care and resided in alternative care settings often face challenges transitioning to adulthood. This study explored perceived supports and barriers during this transition through an online survey of 962 care-experienced adults from over 20 countries. It combined demographic analysis and thematic analysis of qualitative responses. Key findings indicated that the reasons for separation from biological parents included parental death (29.9%), abandonment (22.2%), family instability (19.1%) and poverty (19.4%). The following three overarching themes emerged: (1) relationships and social networks, including the importance of supportive relationships and psychosocial services; (2) well-being and resilience, including how mental health challenges impacted functioning, while resilience led to growth; and (3) resources and opportunities, including how education and long-term support were vital, while financial difficulties and lack of resources hindered progress. Recommendations aimed to improve support systems for more stable transitions to adulthood are discussed.