Pop Quiz: Is it better to hang toilet paper so the paper dispenses over the top or out from under?
If you said “out from under,” you are a Neanderthal. The obvious answer is “over the top.” Patents for the toilet paper dispenser show that it was designed this way but scientists also say that it is more hygienic this way.
When the toilet paper comes out from under, you increase your risk of touching around to find it. You also risk touching the wall behind it where others also touch before washing up.
In a recent study, about 9 million people in the United Kingdom prefered their TP out from under. At least they have bidets.