I understand what you are saying, and the last will example is probably why lawyers manage to make money even on the most straightforward and clear agreements.
However, the red, white and blue is not a description of quantity, so using a comma after "white" wouldnt change anything description-wise regarding the colours. So I still believe the second comma is obsolete..
To make this pool related, I can add that my favourite games are:
1-pocket, 10ball and fishing. No comma:wink:
The serial comma is also sometimes called the "Oxford comma" because it's used by Oxford University Press or the "Harvard comma" because it's used by Harvard University Press.
The importance of them is for clarity to the reader of the text. Newspapers and the fourth estate, so to speak, usually don't use the serial comma.
Here is a non-legal example if *why* the serial comma is important for clarity.
Example #1: I went to visit pooladdict, a pool player and Oscar.
Am I visiting pooladdict, a pool player, and Oscar, or am I visiting pooladdict, who is a pool player, and Oscar?
Example #2: The cupcakes are available in black and white, blue and red, and green and yellow.
Without the serial comma, the sentence would read like this:
The cupcakes are available in black and white, blue and red and green and yellow.
Again, the serial comma is needed for clarity.
Another example is this:
Example #3: I made sandwiches for the picnic consisting of turkey, tuna fish and peanut butter and jelly.
Without that comma, the sandwich made with tuna fish and peanut butter and jelly sure is not appetizing.

In sum, the serial comma should be used before the last item of a series.
The American flag will always be red, white, and blue in my eyes. :grin-square:
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