• devait Ãªtre Ã¢gÃ© d'au moins 16 ans lorsqu'il a demandÃ© son propre passeport;

Could you please translate this to English?

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
• Have been 16 years of age or older when they applied for their own passport; and