I do not believe it is so much about 'taking over' as it is taking her rightful place. Whether it be for biblical reasons or simply following society's historical placement of women, marriage changes the relationship children have with their parents. Just as she is expected to 'honor and obey' her husband, he has taken vows to do the same for her. I have never heard vows that state " I take thee to be my lawfully wedded wife, to honor, cherish, and obey unless my mother disagrees with you, then I side with her." It is a mother's natural instict to want to guide their children as long as they live but it is also a woman's natural instict to want to right by their husband and serve him in the best way they see fit. Unfortunately, the two women have a long history of rarely agreeing on what is best for the man in question.