We tend to think of relationship roles as oppressive and demanding. At times, there are certainly people who are taken advantage of in this area. But, ultimately, having a role helps us get a stronger grip of who we are.
Roles should not be demanded by our gender. But we should take on parts in the house and outside the home that make us feel valuable. Often, sharing the exact same workload can be painful in a relationship because we tend to tell the other how to do things rather than celebrate their individual contributions.