It also helps that Bill is not a common name here at all (the only Bill I've ever met in my life was an American).
I can imagine how confusing it would be if all instances of the word Bill in articles such as these were replaced with Seán lol.
Bill is typically not a given name at all, but rather a nickname for someone named William (William -> Will -> Bill).
Bill is typically not a given name at all, but rather a nickname for someone named William (William -> Will -> Bill).