This is an example of exchange theory.
In sociology, exchange theory has to do with maximizing benefits while also minimizing costs. When applied to Bill and Cathy's situation, they are taking advantage of each other's skills in order to minimize costs - Bill can cook and Cathy can't (so they can prepare food on their own) and Cathy can repair stuff and Bill can't (so they don't have to get a handyman).
Many people feel as though the United Nations fails in many ways to do it main task, which is to make world peace. There ares simply too many smaller fighting groups to make the organization truly effective.
Answer:
I'd say it has motion energy because it will fall if let go. It has gravitational potential energy because of its height.
Beside roles as parents, In the past decades, the roles of Men and Women have mixed up with one another.
In the past, women are known as the caregiver in the household and were known as the sole provider in the society. But due to more and more women in the workforces, many couples decided to switch up their roles into stay at home husband and working mom.