A mythical planet where the naughty offspring of various humanoid species are said to be exiled by vicious life dealers, after being kidnapped and having their youth and life force sucked out of them in disreputable Running In Place franchises, or in one of the many RIP-style, knock-off, life-extension parlors throughout the civilized multiverse. Past a certain age, perhaps eight Galactic Cycles, the threat of being sent to the Planet of Li’l Old Kids loses its teeth, as the kids wise up. That said, there is a sizable group of conspiracy theorists, many former Galactic Girl Guides, who believe that the Planet of Li’l Old Kids is a very real planet and that even youngish adults should be wary of selling life in iffy life-extension establishments. “Always go in groups of three or more” is the rule.