In October 2019, Chile experienced widespread protests triggered by an increase in subway fares. What started as student-led fare evasion quickly grew into a national movement demanding a new social contract and addressing broader discontent with Chile’s democratic transition. This Policy Brief examines youth participation in these protests and the subsequent constitution-making process, drawing on interviews with four young Chileans who were actively involved.  The Brief highlights the importance of a youth-centred approach to constitutional change, detailing both the opportunities and challenges faced by young people as well as their perception of the process's relevance in addressing the legacy of authoritarianism and shaping Chile’s democratic future. The paper emphasises that meaningful youth engagement involves more than just representation; it requires substantial influence throughout the process. The paper also explores how a youth-centred approach can enhance democratic participation and constitutional transformations.