This trope may have been maintained in live acting for many years due to the fact that previous entertainment genres — [[NewspaperComics comic strips]], {{radio}}, and {{movies}} — relied on the same type of humor year after year, in which the children (if any) never aged. Early television writers failed to realize the need to adapt to physically maturing characters; even in radio, a person could do the same voice, or a new performer could be inserted with little problem.

In most cases, this was relatively benign — the lifespan of the programs and the aging of their younger stars rarely impacted each other.

However, in the infamous case of ''Series/FamilyAffair'' (Creator/{{CBS}}, 1966 to 1971), the two intersected destructively for young actress Creator/AnissaJones, who played 8-year-old "Buffy" on the show (not to be confused with a certain other Series/{{Buffy|the Vampire Slayer}}). The program survived long enough for her to enter puberty, but the producers and writers insisted that her character — and her public image — had to remain a pre-pubescent child. Despite the fact that she was almost in high school, Anissa was forced to bind her breasts and play with dolls, not only on set but at press conferences and promotional appearances. The psychological damage thus inflicted is believed by many to have contributed to her death by drug overdose in 1976, a mere five years after the series ended.[[note]] As if that wasn't enough, her home life was a complete mess. By the time the series started its run, her parents were involved in a nasty divorce, including a bitter custody fight over Anissa and her younger brother Paul. The custody fight continued through ''the entire run of the series'', and didn't end until 1973, when their father received custody. On top of all that, their father - who Anissa and Paul ''wanted'' to be with - died of heart disease the following year. In a tragic postscript, Paul would also die prematurely of a drug overdose (in 1984 at age 24). Paul's longtime girlfriend, who loved him deeply and had stood by him until he died, commented many years later to a ''Family Affair'' fan website that Paul had never recovered from his sister Anissa's death[[/note]]

Her sad story no doubt helped to quickly discredit this trope in live-action television; most shows since the early [[The70s seventies]] have allowed their child characters to mature naturally. The silver lining of that is at least it provides new story material for the characters as they grow into teenagers.

Sometimes this causes some absurd paradoxes to arise, particularly on [[LongRunners long-running]] cartoons like ''WesternAnimation/TheSimpsons'', in which the birthdate of the kids keep changing and they have grown up in The80s, The90s, and [[ThePresentDay the new century]]. In one FlashForward, Lisa was shown as a young woman attending university in 2010, at which point, according to season 22, she was seven years old (though a 1992 episode chronicling Lisa's birth is closely tied to the 1984 Summer Olympics, making her eight years old, which is enforced by a 1994 episode featuring Lisa's [[ChildProdigy new classmate skipping a grade level]]), and by season 30, she wouldn't have even been born until ''after'' 2010. In this way, animated series can be said to harken back to the old, pre-television genres that required greater SuspensionOfDisbelief.
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