Why is astyanax frightened when he sees his father hector?

Astyanax is frightened when he sees his father Hector because he has been conditioned to fear the sight of men in armor, associating them with danger and death. Additionally, Hector's appearance, wearing his battle gear, may seem intimidating to the young child. This moment underscores the tragic consequences of war, as even familial bonds are affected by the surrounding violence and fear.