On their mothers

In this reality, mothers spent much of their time holding their offspring and as such, they would often become soiled in piss. However, the mothers never minded and as time went on, it became customary to piss on one's own mother to relieve oneself. Mothers view it as part of their maternal duty. If a person does not have a mother, they will use any other mother in their family (grandmothers, sisters, aunts, wives, and daughters) instead. As such, multi-generational homes are common. Additionally, once a woman begins lactating she never stops, so breastfeeding is common throughout a persons life.

As skin-to-skin contact was prioritized throughout human history, societal customs around nudity is relaxed, with many people opting to remain unclothed while in the presence of their own house. Even outside, many people opt to not wear clothing to make pissing easier. Sex in public is still taboo, but people tend to have more open-minded views of intrafamilial relations in their own home with mothers unsurprisingly being many people's first foray into sex.