Linguistics

Phrases like know one's [general subject of interest] are very annoying to me because they seem rather self-centered. I am obviously fine with knows his way around or Know Your Customer because the use of possesive pronouns is appropriate.
On the other hand, now I know my ABCs is atrocious because the modern Latin alphabet obviously does not and never did belong to a single person, and has been used by billions of people in the last few centuries.

Do you know other English phrases with unnecessary posessive or personal pronouns? Do they exist in other languages? Is there a name for this linguistic phenomenon? Where do I complain? ~/s~