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”
I have given up on “steep learning curve”. A learning curve is proficiency on the Y axis against time on the X. A steep learning curve indicates something that is learned very quickly. A shallow learning curve is something that takes a long time to master. See Ebbinghaus 1885.