How is the making of a T-shirt an example of interdependence?

To make the shirt you need to buy the material or buy one all ready made. To add the design you need to have paint, a machine, or some form of brushes and materials. All of this requires someone to do or make something so you can use it. It starts with the person who grows the cotton, to the maker of the cloth, to the production of sewing a shirt, to the company that blends/ makes paint. You need these things which requires an interdependence from you to get the materials so you can have a finished shirt.