German Shepherds were originally developed as working dogs, and that history still shapes their core traits — high intelligence, strong alertness, and an eagerness to learn commands quickly. They tend to form close bonds with their primary handler and can be reserved or watchful around strangers, which suits their working-breed background. This combination of intelligence and drive means they benefit enormously from structured training and early socialisation, since an under-stimulated German Shepherd can become anxious or difficult to manage. Their active nature also calls for regular physical and mental exercise, not just a daily walk around the block.