What was not an element of operetta?

Operetta is a genre of musical theatre that combines spoken dialogue with opera-style singing and dancing. It originated in the 19th century and experienced great popularity in Vienna, Paris, and other European cities. Key elements of operetta include catchy melodies, light-hearted and often comedic storylines, and elaborate costumes and sets. However, one element not typically associated with operetta is realism. Operettas often feature exaggerated characters, fantastical situations, and improbable plot lines, making them more akin to fairy tales or comedies of manners than realistic dramas.