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’m aware of that, but I’m fairly certain the period’s kerning is the same whether the period is at the end of a sentence, or as part of an abbreviation. Therefore I think typeface designers tend to use a shorter spacing to be safe due to the differing use cases. I actually think roughly 1.5 spaces after a sentence is ideal length, but, yeah - we were taught to use double-spaces on typewriters since they’re monospaced.