A small joke there, eh, stan? Very small.
This guy was a new recruit and because he was not available for marriage, the sisters stayed far away. Single sisters like to demonstrate to the available brothers how they can be a good mother.
Finally, the brothers put in a diaper changing table. The jw fathers of diapered children still sent mom in to do the changing in the sisters restroom. They had more important duties of course.
Some younger more modern fathers did start giving their wives a break and did it some time.
When his daughters too old to take them in the men's room, he had to get the sisters to potty them in the women's.
So it seems that sex is the most important rule on JWN.