As evidenced by the shocking show of bad sportsmanship by the one kid as he lost his match.

https://www.youtube.com/watch?v=hZS031ulf94
So none of those adults saw fit to say anything to that angry kid who pushed the ump? And why is the official also a child? Are there no adults allowed in this sport? I am now obsessed with the rules and regulations of youth table tennis in Russia.