Except when it isn't, like Peter Cancro of Jersey Mikes, who started making sandwiches and then bought it in 1975, and in 2024 sold it to Blackrock for $8B.
Or more here: https://www.businessinsider.com/ceos-started-entry-level-at-...
Now, not all people at Jack in the Box are destined to be the CEO, but they do have more opportunities than someone working DoorDash