In the USA, "Federal buildings" typically have no mixed use built in. It is not clear to me if this is for security reasons, or because the bureaucrats who com

In the USA, "Federal buildings" typically have no mixed use built in. It is not clear to me if this is for security reasons, or because the bureaucrats who commissioned the buildings assumed that each bureaucrat employed there would take the most pleasure in eating lunch at the official cafeteria. Some federal buildings include internal mixed use (second-party shops which lease internal retail space) but the end result is the exteriors become long, sterile blocks for the pedestrian.