Japan's courier services struggle with growing frustrations over high-rise apartment, or "tower mansion," delivery rules. These tower mansions often have strict policies for delivery personnel, making it challenging for couriers to safely and efficiently deliver packages. This issue becomes more significant as high-rise living gains popularity while e-commerce deliveries skyrocket.

In densely populated urban areas like Tokyo, high-rise apartment living is common. Towers offer high-grade facilities and security, including delivery rules to prevent problems such as theft. However, these regulations can be strict and complex for couriers, causing a social debate on how to balance the security needs of residents with the working conditions of couriers.

In the US and EU, there are similar challenges but on differing scales. While high-rise apartments are less common overall, delivery complications can still be problematic in busy metropolitan areas. Solutions vary, from secure delivery lockers at ground level to specific time windows for delivery services.