This article looks at the drop-out rate among volunteer firefighters during their initial training. It is based on data collected in France. It uses a mixed approach to identify profiles likely to leave their commitment quickly during initial training. Profile data from 330 individuals still in employment and 42 dropouts were used. The results show that women, individuals with prior knowledge of the environment, and city dwellers are more likely to drop out, while individuals from advantaged socioeconomic backgrounds will continue their involvement. Adjustments in communication, environmental management and mission specialisation could help retain volunteers and limit the risk of early drop-out. This study addresses a particularly important issue at a time when the recruitment of volunteer firefighters is posing significant challenges around the world.