Not erroneous. They all had theaters, even the Greco-Bactrians! It's one of the surefire archaeological evidences of Greek or Greek-inspired habitation. The most definitive physical evidence comes from the archaeological excavations of Ai-Khanoum (likely ancient Alexandria on the Oxus), located in northeastern Afghanistan. Archaeologists unearthed a massive traditional Greek theater built directly into the side of the city's acropolis capable of seating between 5,000 and 6,000 spectators. It featured rows of seating surrounding a circular performance area, built in the exact architectural tradition of mainland Greece. It's even recognized as the easternmost permanent Greek theater discovered from the ancient world.
Ai-Khanoum (Greco-Bactrians):
https://rsisinternational.org/journals/ijriss/articles/alexandria-on-the-oxus-ai-khanoum-and-the-greco-bactrian-synthesis-in-ancient-central-asia/
https://greekreporter.com/2026/04/29/afghanistan-ancient-greek-city-mystery-demise/
https://www.academia.edu/38141997/Amphitheaters_19_01_02_pdf
https://www.wikiwand.com/en/Ai-Khanoum#Other_buildings
There was a variant called musical chairs.
This system eliminated 1 by 1 (low score) until only one remained standing.
https://riseofnations.fandom.com/wiki/Musical_Chairs