You Are Old, Father William is now mostly forgotten, and only the parody is remembered. Carroll's parody "undermines the pious didacticism of Southey's original and gives Father William an eccentric vitality that rebounds upon his idiot questioner". Martin Gardner calls it "one of the undisputed masterpieces of nonsense verse". Since then, it has been parodied further, including more than 20 versions by 1886 a version by Charles Larcom Graves, a writer for "Punch" in 1889, and "You are young, Kaiser William". In the Walt Disney animated film "Alice in Wonderland" (1951) the first stanza of the poem is recited by Tweedledee and Tweedledum as a
Super Bowl XLIX halftime show were not given rigorous choreography but instead told to mimic Perry's moves. In an interview with "The Hollywood Reporter", Durell said that the Left Shark's performance was intentional, stating their objectives were to "perform Katy's trademark moves to the 'Teenage Dream' chorus, which they both did perfectly" and "have loads of fun, and bring to life these characters in a cartoon manner, giving them a Tweedledee/Tweedledum-type persona". Super Bowl halftime show director Hamish Hamilton later said that the Left Shark performance was inspired by a Scissor Sisters performance in the 2005 Brit Awards, where the group played "Take Your Mama"