The discussion thread here strikes me as confused because people are looking at an era several centuries back and using current norms (both economic and cultural) to analyze it.

Beds used to be luxuries and having just 1 person per bed was very rare.

As late as Colonial America inns would put multiple people per bed. Heck, this persisted into the 19th century! Lincoln, as I recall, shared a bed. Much hay is made of this buy revisionists who want to use this fact to argue that Lincoln may have been gay. (FWIW, I don't know and don't care). But the mistake they're making is obvious.

Imagine if in 2150 people look at old pictures of people driving in the same car and whisper to each other "ooh, kinky! ...and there's a dog in there too!"