For me, it may be that the toilet paper roll needs to have the open end away from the wall. I don’t want to reach under the roll to take a piece! That’s ludicrous!
That or my recent addiction to correcting people when they use “less” when they should use “fewer”
It’s not even consistently denoting plural. It’s being used because people don’t understand the use of an apostrophe in a contraction as well. Word ends in “s”? Just slap an occasional apostrophe in them.