I don't think men and women can switch roles at all, let alone in the workplace. Reason being, men created a lot of the jobs that exist today, so the jobs were brought to exist with the physique and strength of men in mind. For example, a woman firefighter isn't something you'd see because men almost always have the weight, bone structure, and strength behind them to do things like kick open doors, life burning beams of wood, and brave the smoke and fire to carry someone unconscious out of a burning building. You also wouldn't really see a male florist because men don't have as well of an eye for detail that women have, so matching flowers to suit a certain occasion or mood would come easy to women.

Our society today has seen many a single mother surviving with her kid(s) and making it work, however with single fathers, yes they exist but most of the time the children they bring up have issues with how they were raised because the fathers lack the motherly love and nurturing that is crucial to children.

I don't believe at all that men and women can equally work both roles because some roles were made for women and others were made for men, and that's just how it is.