You probably can't please everyone, but you can likely attempt to put that meta-knowledge in the minds of the nekos designing KFY ships.
A neko designing things for neko could take into account:
- Early starts where the neko is created and doesn't exactly know how to harness her own identity, meaning that purpose is the driving force in her life.
Arguably, this is the stage where the bunks are the most appropriate. They wouldn't know what to do of their independence/privacy so placing them in an environment where they would not have much that would be superflous avoids the 'empty cabin' syndrome as well as places them in frequent contact with other nekos.
- A point where the nekovalkyrja develops more in maturity and becomes comfortable with some of her sisters could be the point where the nest bed might feel more appropriate.
I've also been thinking that nest beds probably aren't good to be shared with nekos in different workshifts. It's one thing to be all piled up in the same space, and nother to be sleeping and have some of your nestmates prepare for the day/need talk with each other while you're sleeping.
- With maturity comes independence. As much as some human children might enjoy sleeping with their parents, around adolescence they typically outgrow that yearning for closeness. I figure it can kind of be the same for the neko, whom eventually might just want to have their own space - especially if they got to know about humans and try to emulate them.
That's where the single cabin comes in where the neko might have it to herself, or just share it with another person.
From there, we can likely surmise that the neko, as she grows, starts making her own decisions about her preferences. If she values the independence she's reached, she might very well go for more luxurious solitary quarters. That can work fairly well for both the neko whom values having her own personal space to nekos that are more reserved. That often comes with higher rank.
Other nekos could try to figure out what it is to be neko, and tie it to their beginnings, perhaps returning to their nests. Or, if they have quarters, switch their bed back to a nest pit to share with any other neko significant other.
...
So, I figure the KFY designers would have studied the issue. In a way, it's very much an age thing. Nekos go through transitions as new members first start playing them and figure them out for themselves in contrast to the subculture that's gradually been forming throughout the years.
Eventually, nekos find their own answers:
- Yui goes for big rooms and nest beds which is fairly prepared to be shared/
- Hanako goes for comfortably large quarters with a sizeable traditional bed, which she's been prone to amply sharing it in the past.
- Kotori likes large rooms because she's reserved and values her personal space. She uses traditional beds by habit, though her samurai upbringing might see her comfortable with tatami/futon. Going back to nests could be a possibility, but it feels awkward.
- Yukari idealized the human lifestyle over the neko one, and sought after it; so she's gone for traditional bed shared by her human partner.
