Why is last mile delivery so expensive?

Last-mile delivery is often more expensive due to various factors. These include the need for fast and efficient delivery in densely populated urban areas, the requirement for Specialized vehicles or couriers to navigate narrow streets and crowded neighborhoods, and the demand for on-time delivery for each individual customer. Additionally, last-mile delivery often involves multiple stops within a small area, which can result in increased fuel and labor costs. The need to meet customer expectations for convenience and flexibility also adds to the complexity and cost of last-mile delivery.