Example.
How many American people really know how to properly wash dishes clean when camping in the field with no hot water, no soap, no sponges? Typical answer: "Why would I want to wash paper plates and plastic utensils?"

EMT shears example explicitly? Ok. Have you ever considered studying the finest skill of blade sharpening? Or do you know how to cut steel wire with your bare hands (simple physics)? Typical answer: "I don't need that. I have my environment. Granted."...

Regarding the environment pollution - every tiny bit adds.