Why does the author of the play give the jury members instead of names? Give 3 reasons why?

At no point in the script are any names used, including for the jurors, the defendants, or the witnesses. This is a very conspicuous choice that allows each character to function as part of this larger allegory for the American society. It gives the sense that the jurors could be you, the person sitting next to you, or the person down the street; these are everyday Americans.