Here's why:

* High Production Volume: Polyethylene is produced in enormous quantities, exceeding 100 million tonnes annually.

* Versatility: It has a wide range of applications, including packaging, films, bottles, pipes, and many more.

* Low Cost: Its production process is relatively inexpensive, making it accessible for a wide range of uses.

While other polymers like polypropylene (PP) and polyvinyl chloride (PVC) are also widely used, polyethylene reigns supreme in terms of overall production and consumption.