History Main / FoolishSiblingResponsibleSibling

** Detective Amanda Rollins is the Sensible sibling, having become a successful detective in the Special Victims Unit of the New York Police Department. Her younger sister, Kim, is the Foolish sister, being a veritable ManChild who has seemingly no impulse control whatsoever, doing and saying whatever she wants, whenever she wants, not caring about the consequences that will result or the effects her actions have on others, even her sister. This takes on a darker-than-usual cast in two ways. Firstly, her behavior also leads to her engaging in rampant substance abuse and being devoted to a FetishizedAbuser. Secondly, Kim resents her sister for being more successful and respected than her (although, ironically, their mother is more like Kim and definitely favors Kim), which she considers as fair rationale for exploiting and manipulating her sister. [[spoiler:She sets Amanda up to murder her abusive boyfriend for her when she gets sick of him, an act that would also result in a big insurance payout -- which she forged Amanda's name to qualify for, and when she is caught on videotape confessing with this, she skips town along with all of her sister's possessions -- '''literally''': the only things Amanda has left is her fridge, an ice tray, and Kim's goodbye note.]] In later seasons, Kim [[spoiler:is diagnosed with bipolar disorder and finally gets proper treatment]], leading her to finally settle down and become more responsible. Then [[spoiler:Kim is prescribed painkillers, causing her to fall off the wagon and go back to being as foolish as ever]].

** Fin's son Ken and [[spoiler:his half-brother Darius]] are a particularly extreme version. Ken is first a college student and then a social worker and spends his free time volunteering with LGBT organizations and homeless youth; as of Season 17, he's also married and about to become a father. By contrast, [[spoiler:Darius has a long criminal record and is eventually revealed to have brutally raped and murdered his girlfriend, and also killed her infant son]]. By the end, even Ken doesn't want anything to do with [[spoiler:Darius]].

* ''Manga/ChibiMarukoChan'': Maruko, the main protagonist, is the complete opposite of her older sister Sakiko. Maruko is the foolish sister because she is lazy since she doesn't do her homework and is always forgetful, while Sakiko is responsible as she is well-behaved and often takes good care of sister.

* ''WesternAnimation/TheOwlHouse'': "Covention" introduces Eda's sister Lilith. Whereas Eda is an outlaw witch and petty criminal (Foolish), Lilith is the powerful and dignified leader of the Emperor's Coven, the elite soldiers of the ruler of the Boiling Isles (Responsible).
** PlayedWith, however, in their perspectives and understandings of the coven system and of Emperor Belos' trustworthiness. Later on, it becomes apparent that Eda recognizes that the coven system is little more than a power scheme designed by [[BigBad Emperor Belos]] to maintain power, whereas Lilith believes it truly is a necessity to maintain order. In addition, Eda is fully aware that Belos is not trustworthy when Lilith claims that Belos can cure her curse, whereas it takes hearing Belos reneging on his promise to her for Lilith to realize that her sister was right.
** Played Straight for laughs, however, in "Escaping Expulsion". When Luz teaches them how to use glyphs in conjunction with one another, they essentially mentally behave like schoolgirls. While [[TeachersPet Lilith]] follows Luz's instructions exactly as stated, desperate to please, [[ClassClown Eda]] performs haphazard experiments with glyphs in ways Luz discourages. As a result Lilith successfully uses glyphs in ways that allow her to form impressively artistic ice structures, while Eda's glyph combos fail to produce any spells that have any useful effects, or don't go out of control and cause chaos, causing the latter to [[GreenEyedMonster envy Lilith's newfound skill]].
** This also the dynamic between Amity and her older brother and sister, Edric and Emira. She is the Responsible one while they are Foolish.
*** And compared to each other, Edric is the more foolish twin, having some {{Cloudcuckoolander}} traits while Emira is more grounded.

%%Administrivia/ZeroContextExample* In the '80s sitcom ''Double Trouble'', Alison is responsible while Kate is foolish.

* ''Series/{{CriminalMinds}}'' has the Hotchner brothers, Aaron and Sean. Aaron is a well respected lawyer turned FBI agent. Sean cooks in a diner and later tends bar.

* In ''VideoGame/StardewValley'', Haley is the Foolish to Emily's Responsible. Despite her outgoing attitude, Emily is the more mature of the two and works part-time in Gus' bar, while Haley seems very childish for her age, throwing tantrums at the thought of being forced to do household chores and mostly just loitering about.

* The film version of ''Film/TheCatInTheHat'' is shown to have this. Conrad (Foolish) is destructive, rule breaker, and misbehaved sibling up until the end of the film, while Sally (Responsible) is the rule obeyer, and somehow bossy sibling.

* In the Website/GoAnimate "Character gets grounded" videos, a lot of the troublemakers have this dynamic with their siblings. It's worth pointing out that these are simply the most common dynamics between these characters in the grounded videos, and some videos have been known to reverse the characters' dynamics or even have both be Foolish: