Notice that you said gender ROLES. Trying to follow a script can sometimes lead to a life of great unhappiness.
As food for thought, I'd point out that it wasn't that long ago that a wife who didn't do the cooking & cleaning & taking care of children was "so outside the realm of normalcy." It wasn't that long ago a black man & a white woman getting married was outside the realm of normalcy. It wasn't so long ago a woman wearing pants was outside the realm of normalcy, etc.
Society/culture plays somewhat into people's upbringing, but as an adult they make choices as to how they decide to live their lives, based on what best feels right for them, and that may contradict completely what their upbringing programmed them to be.