There is no rigid requirement for this. As long as communication is good, mom can sleep in the master bedroom. Giving up the mother is a respect for the mother and an attitude of the children.
The master bedroom is different from the second bedroom and is the bedroom of the owner of the house. The master bedroom is the most private space for sleeping and resting. Bedroom design should not only provide a quiet and comfortable sleeping environment, but also become the most intimate and intimate place for couples to pour out their hearts.