I’ve watched enough people who do their “business” and bypass the wash basin to know it’s a smart to use paper towels when touching sink handles or water fountain levers.
What about the door handle to get OUT of the bathroom? All that washing, then re=contaminated upon leaving the WC.
Here’s my peeve: the lids for to-go coffees at convenience stores, etc. The top lid always sticks to the one just beneath it, so the customer has to pry them apart, leaving one behind. That’s the one the next customer gets. They need to have a lid-dispenser that shoots ‘em out one at a time.