These days, you can get into a public restroom and do your business without touching anything (at least with your hands).
The toilet flushes automatically.
The water faucet comes on automatically (if you flail your hands around enough).
The paper towels come out, or the hand drier starts, without touching anything.
But then BAM--you're faced with that germ ridden door to get back out!!
If the door opens outward, without a latch, you can always use your elbow or hip to get out; if not, you might be able to get away with crooking a pinkie around the handle. Otherwise, all that non-touching is wasted as you grab the doorknob to get back to the real world.
Why not have automatic doors in public restrooms? Then the cycle will be complete!