Privacy

Privacy is important to colonists, they dont like using the toilet in front of each other, make sure toilets and showers/baths are private or in small stalls or around corners out of line of sight. And avoid making centralized public toilets, its better to spread small washrooms around your base especially next to work areas like a kitchen or workshop. Colonists and visitors shouldn't wander into occupied toilets or try to use a shower while someones on the toilet. Couples won't mind seeing each other, prisoners also don't care since they have low expectations. You can have same sex showers like a typical locker room using the gender restrictions. You can make private en suite bathrooms, link the room to a bed by using the link button on any fixture, they can be shared by couples.