What major influence accelerated the standardization of first aid kits?

Large-scale military conflicts

Before the modern survival kit, the first aid kit set the precedent for organized emergency provisioning. This development was significantly accelerated by large-scale military conflicts, which necessitated the standardization of medical supplies to effectively treat battlefield wounds. By mandating uniform contents for medical boxes, military organizations established the importance of organized, portable emergency care, providing a foundational framework that later expanded into the comprehensive survival kits used for broader life-sustaining purposes.