For nearly two years, Castillo pursued her right to die after her father put up a lengthy legal battle when a medical body in Catalonia approved her request for euthanasia in 2024. As the family's struggle unfolded, Castillo’s case was closely followed in Spain, which passed legislation in 2021 enshrining the right to euthanasia and medically assisted suicide for patients meeting certain conditions. Castillo's young age, the public battle waged by her family to stop her and the circumstances that led her to seek euthanasia animated public opinion as the courts ultimately ruled in favor of her right to end her life.
