As a counterpoint, in most of the Latin American family empires, where the eldest son is by birth designated to be the next CEO of the company, he usually starts working at the factory in childhood, doing all of the menial jobs. Then he's given a job like outbound sales rep and essentially has to "work his way to the top" (of course on an accelerated timeline, and without really needing to be the best at any level). That way by the time he is CEO, he has the credibility and knowledge of how every facet of the business works.