Mary Cooper is usually the bedrock of the family. S02E17 allows Laurie Metcalf (or Zoe Perry, depending on the episode context of Mary's struggles) to showcase the pressure Mary feels trying to keep her "perfect son" on the path of righteousness.
Here’s a review of Young Sheldon Season 2, Episode 17 (“The Academic Decathlon, a Bribe, and a Coincidence”), based on the WEB-DL version (high-quality video and audio): young sheldon s02e17 webdl
"Albert Einstein and the Story of Another Mary" Original Air Date: April 4, 2019 Source Quality: WebDL (720p/1080p) Runtime: ~20 Minutes Mary Cooper is usually the bedrock of the family