Jade plant leaves droop due to various reasons: overwatering, underwatering, or insufficient sunlight. Overwatering damages roots, while underwatering leads to dehydration. Lack of sunlight hinders photosynthesis, essential for plant health. Remedies include adjusting the watering schedule, repotting in well-draining soil, and providing more sunlight. Additional troubleshooting involves ruling out pest, disease, or fertilizer burn issues.