All is EVERY person.
Britannica, ’23 [Britannica Dictionary, British dictionary, “All,” accessed June 30, 2023, https://www.britannica.com/dictionary/all //jwc]
Britannica Dictionary definition of ALL 1: the whole, entire, total amount, quantity, or extent of He stayed awake all night. [=the whole/entire night] She worked hard all day. [=throughout the entire day] I've been waiting all week to see her. [+] more examples 2 a: every member or part of — used with a plural noun or pronoun to mean that a statement is true of every person or thing in a group All my friends were there. a film suitable for all ages They all came late. [+] more examples b: the whole number or sum of — used with a plural noun or pronoun to mean that a statement is true of a group of people or things considered together It was great to see him again after all these years.