The autonomy of elderly people returning home after suffering a traumatic brain injury is often questioned. The issue revolves around their functional autonomy, their ability to perform activities of daily life, and their decision-making autonomy, their ability to take part in decisions that affect their place of residence. This article explores the conditions for exercising this dual autonomy and the experience with dependency among the elderly who have suffered a traumatic brain injury, with the goal of improving the support provided during and after rehabilitation. The analysis is based on interviews held with elderly people and their relatives.