Sheldon's (Jim Parsons) original reason for dating Amy (Mayim Bialik) on The Big Bang Theory has been retconned by Young Sheldon. Aside from the fact that they clicked right away, one of the other reasons why Sheldon wanted to date Amy was because he was convinced that combining their genes will make intellectually superior babies. Unfortunately, that may not be the case.
In Young Sheldon season 5, episode 16, "A Suitcase Full of Cash and a Yellow Clown Car," Amy returns through the voice-over intro where she and her husband talk about money being one of the important elements that factor in a relationship. Sheldon petulantly reveals that his wife took away his comic book allowance so they can start a college fund for their kids. But, if their children are clearly geniuses like them, it isn't something that they should be worried about. Sheldon, in particular, came from a relatively middle-income family and as seen in The Big Bang Theory prequel, his parents don't have to worry about his tuition fees because he's on full scholarship. Interestingly, he doesn't argue with the decision to allocate his comic book money to their kids' college fund, so perhaps both Sheldon and Amy have noticed their children may not be as academically gifted as they are.