Is it really necessary (aka my trivial matters post of the day)....

Toilet seat covers.....do people really need to use them? Granted I work in a building with 400+ people who have to "go" at some point throughout the day, but the place is kept clean above & beyond most standards. My company also takes pride in recycling to save the earth. And yet I wonder why people think it's necessary to use covers to "protect" their ass. Protect from what I cannot begin to fathom. I never use them and have yet to catch any sort of "disease." If there's any place these things would be useful is a foreign country or a hole-in-the-wall bar / restaurant, but of course they don't have them there. LOL