Young Sheldon has attracted an army of fans, including many who were not fans of The Big Bang Theory. This might well seem counter-intuitive. However, it becomes more understandable when considering that Sheldon Cooper (Iain Armitage in Young Sheldon, Jim Parsons in The Big Bang Theory) is a pre-teen in the former show and a grown adult in his late 20s and 30s in the latter.
From The Big Bang Theory's beginnings, Sheldon was an irritating character. He compelled Leonard, his roommate, and begrudging best friend, to sign a «friendship agreement» detailing all the conditions he was to follow to be allowed to be Sheldon's friend, then convinced his first-ever girlfriend, Amy Farrah Fowler (Mayim Bialik), to sign an equivalent agreement expounding her responsibilities as his romantic partner. Sheldon and Leonard's entire circle of friends were even expressly forbidden from sitting in «his spot» on the couch. While his quirks were meant to be comical, that behavior hurt some audience reception.
Related: Young Sheldon Is Ruining Big Bang Theory To Save Itself
Many viewers who hated The Big Bang Theory currently love watching Young Sheldon due to Sheldon's younger age in the prequel, making his selfishness more forgivable. Most people encountering the behavior detailed above in a real-life friend or partner would not respond well to it. Young Sheldon explores how these tendencies, along with his prodigious intellect, develop within Sheldon as a nine-year-old. He exhibits some of the same tendencies he does as an adult, but they are here attributable to the character's age, becoming almost charming in a child. Sheldon's unwillingness to share or compromise made the original character unlikeable for some, including critics and
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