Schools that "hire" students to sit at the table and run the clock or keep the score book don't seem to be concerned about quality of work as much as just getting through the game. An inexperienced clock operator can and will cost a team a game form time to time.
Example- Team A scores go ahead basket with 3 seconds left in game and Team B calls a timeout immediately to set up a play and preserve time.
Team B can now recieve the ball, make a pass along the baseline to another player who is out of bounds, who then can throw the ball down the court to a third team B player at half court. When should the clock start? The correct answer is when the third player makes contact with the ball. However, rent-a-kid time keeper started it on the first pass, not paying attention to the rule or the game officials arm still in the air, so team B makes the layup after the horn sounds but clearly would only have required 1 or 2 seconds to get the shot off. The remedy? They did a do over, this time team A was ready and team B lost the game. Clock keeper 1 , team B 0.
This is going to happen in a game where the ball will hit the rim but the shot clock keeper will forget to reset it as they are more engrossed in the game than their job.
I may be in good with it if they hire an official to run the clocks, rather than a random parent or student.