Purpose: This study aims to present the experiences with self-determination and taking ownership of life in Sudbury model schools that allow students true choice. Design/methodology/approach: For this qualitative study we used a thematic analysis (TA) methodology. The study is based on semi-structured interviews with 14 adult participants from eight different Sudbury model and comparable schools in the Netherlands, Israel and the US. These schools offered students real choice in the curriculum program. Transcripts were analyzed and corresponding meanings thematized. Self-determination theory (SDT) is used as a lens to interpret the findings. Findings: The findings suggest that an organizational structure that supports own responsibility in an absence of an imposed program and a culture of no-interference creates conditions for taking ownership of life and choices (self-determination) and encompasses taking ownership of learning, education and one's future. Taking ownership of one's life seems to be related to strongly internally oriented processes with an internal locus of causality, to find their own motivation and taking responsibility for choices, behavior and consequences in a SDT need supportive social context. Research limitations/implications: This study is part of a larger research that addressed multiple facets of their experiences with their schools to understand the longer-term effects these schools had on the adult lives of participants. This limits the scope of this paper to only explore the conditions that led to the mental state of "taking ownership of one's life." Originality/value: Conditions that can lead to long-term self-determination of one's life and future in a school setting is an unexplored area of research.