How do men or women accept changes in traditional gender roles? why?

The traditional gender roles are that women are at the home taking care of the children and the men are out at work making money for the family.
Now a lot of families have it the other way around, both parents are the same gender, or both parents work and the children stay at some sort of aftercare system at their school until someone can pick them up.

Hope this helps!!! (Did a project on this recently)