The project “Inclusion and Citizenship through Sport and Culture: Youth Exchange Mayotte–Luxembourg 2025” is rooted in a strong human and European story built over the long term. Its origins date back to the late 2000s, when a first bilateral exchange between Mayotte and Luxembourg enabled a young person from Mayotte to experience a European mobility opportunity for the first time. This experience represented a decisive turning point in his personal, educational and civic pathway. Today, this young person is the project coordinator. The positive outcomes of this initial mobility experience — cultural openness, increased self-confidence, the ability to project oneself beyond one’s territory, and associative engagement — have deeply shaped his trajectory. Having become a sports educator and a committed youth worker in Mayotte, he has gradually developed educational and social initiatives with the ambition of passing on to other young people the benefits that European mobility had brought him. In a territorial context marked by the geographical isolation of Mayotte, persistent social inequalities, limited access to European programmes and, more recently, the consequences of two cyclones that severely impacted the island, the project addressed a clearly identified need: to open new perspectives for young people from Mayotte and to break down social, cultural and geographical barriers. The objective was to offer young people with fewer opportunities concrete, structured and safe access to European mobility. Sport and culture were chosen as key tools for inclusion and learning, as they are universal, accessible and unifying levers. The project aimed to use these tools to encourage active participation, promote non-formal learning, strengthen group cohesion and create a supportive educational environment conducive to intercultural exchange and personal development. Another major objective of the project was the personal development of participants, by working on self-confidence, free expression, individual posture, autonomy and a sense of responsibility. Through collective life, sports and cultural activities, and reflective moments, young people were able to acquire valuable personal and social skills for their future educational, professional and civic pathways. The project also aimed to raise awareness of the fundamental values of the European Union — respect, equality, democracy, tolerance and the fight against discrimination — and to strengthen young people’s civic and associative engagement. The objective was to enable participants to better understand their role as citizens and to encourage them to become, upon their return, relays and ambassadors of European programmes within their territory. The implementation of the project was based on a progressive and inclusive preparation process, including information meetings with families, fair selection of participants, and educational workshops on European citizenship and interculturality. The international mobility, carried out in partnership with youth and sports organisations in Luxembourg, combined sports, cultural and civic activities, promoting active participation, collective reflection and non-formal learning, in line with Erasmus+ quality standards. Finally, this project fully embodies the European added value of the Erasmus+ programme. It illustrates a complete trajectory — from beneficiary to actor and then project coordinator — and demonstrates how a mobility experience lived more than twenty-five years ago can generate concrete, sustainable and structuring impacts over the long term for a territory and its youth.