Young Sheldon's George Is Not Going To Cheat On Mary, And Here Are 3 Reasons Why

It's already established, TBBT was happening in another universe.
If there is one thing about Young Sheldon that makes all Big Bang Theory fans extremely confused, it's the storyline of Sheldon's father, George Cooper Sr. Not only has George been whitewashed and turned from the raging alcoholic Sheldon once described him as to almost the best father imaginable, but he still remains faithful to his wife.
Although the Coopers have very obvious problems with their marriage and are canonically unhappy with each other, they seem like much more decent people in the spin-off than they were described in the original series. And apparently, the Young Sheldon writers just decided to keep it this way.
Here are three reasons to prove that we won't see the Cooper patriarch cheating on his wife in the prequel.
Sheldon's age
While talking about George's infidelity incident, Sheldon mentioned that he was 13 when it happened. By this point in the prequel show, he is already past that age and has moved to Germany. Of course, the timeline can be changed because it's not that important to the plot, but with all the other details, it's just unlikely.
Bible Camp
Three Knocks
Perhaps the most important clue of all is the number of knocks Sheldon repeats to announce that he's there. According to the original story, he was so traumatized by what he saw between his father and the mistress that he promised to always make sure people hear him coming.
In Young Sheldon, however, he does the three knocks right from the beginning!
Whatever the reason, it doesn't feel like the Young Sheldon writers are willing to sacrifice all of George's character development in order to conform to the canon, and are instead aiming to create a more thoughtful and realistic story.