And you don't have to be a grammar professional to have an opinion on the matter. ... In American English, the use of the Oxford comma is often encouraged whereas it's not in other languages.

The Oxford comma. “Ask” instead of “aks.” There, their, and they’re. The legitimacy of “ain’t” and “y’all.” These are familiar, if sometimes contentious, issues in the usage of the English language.

Simon Horobin, an English professor, at Oxford university has suggested that apostrophe use should be more widely discussed and asks for spelling and grammar pedants to relax. By Harry Wallop and ...