English-only is tricky enough as it is. When we see law and court cases that turn entirely on whether a comma was included or not, or whether “and” or “but” was the important contraction, or whether “shall” or “will” was the important word, let’s not make things harder than that.
Exactly. About a year ago there was a case of Oakhurst Dairy truck drivers in Maine winning a class action lawsuit about overtime pay. It cost the company an estimated $10 million, and it hinged on the lack of an Oxford comma.
Lack of Oxford Comma Could Cost Maine Company Millions in Overtime Dispute
https://www.nytimes.com/2017/03/16/us/oxford-comma-lawsuit.html