The reasoning behind why not all containers are equipped with door hold backs stems from the functionality and purpose of the containers themselves. Door hold backs are primarily used to secure doors in an open position, aiding in the loading and unloading process by preventing the doors from swinging closed unintentionally. However, not all types of containers require this feature due to their design and intended use.
For instance, some containers are used primarily for shorter transport durations or do not need frequent access during transit, making the installation of door hold backs unnecessary. Additionally, certain types of cargo might not require that level of accessibility or may be loaded in a way that precludes the need for the doors to be held open independently. Thus, it is a matter of practicality and operational efficiency that dictates whether door hold backs are included as standard equipment on a container.
While factors like cost, complexity of installation, and aesthetic considerations might play a role in container design, the primary reason is based on the specific requirements of the cargo and and access needs of the container type.