I see you mentioned bar mitzvah as a right of passage. There is a bit of a misunderstanding about what exactly a bar mitzvah is. It’s is not the celebration or Torah reading/teaching, it is the boy, who on his 13th Jewish birthday becomes a legal adult in the eyes of the Law, regardless of whether he had any event to mark it, and the term actually means person, who is subject to the Law. Preparation to become a bar/bat mitzvah begins at three when a child begins his or her Jewish education, and those specific bar/bat mitzvah preparation classes held in many synagogue are several years too late as a starting point.