In the past, restrooms in shopping malls were typically categorized as separate facilities for men and women. However, over time, it has become increasingly common to see combinations of moms and sons, dads and daughters, grandparents and grandchildren taking care of each other. This has created a social issue regarding how to address restroom usage in such situations. Recently, we have created the first family restroom in China with cross-gender functionality. Taking into consideration the complexities of adults assisting children in using the toilet and washing hands, as well as multiple adults taking care of children, we provide waiting areas, mother and baby spaces, and storage areas for strollers. We are committed to providing more convenient and user-friendly services for families on the go.