Here's why:
* Processing: Interlibrary loans require multiple steps, from placing the request to receiving the item. This includes the borrowing library locating the item, contacting the lending library, packaging and shipping the item, and finally, the borrowing library processing it for the user.
* Shipping: The item must be physically transported, which can take several days or even weeks, depending on the distance and shipping method.
* Availability: Sometimes, the requested item may be unavailable at the lending library due to being checked out, in repair, or otherwise unavailable. This can further delay the process.
While interlibrary loans offer access to a vast collection, the potential for long wait times is a significant drawback.