Sure, you're a nomad, so you're used to how things work in other places, but a lot of people aren't, nor do know how to research local customs nor whom to ask before they arrive. I'm not a traveler, so if I suddenly did arrive in France, the whole bedding rental thing is a totally new concept that I'v never heard of before reading your comment. How would I even know to ask about that sort of thing, if my experience was entirely based on hotels, where that isn't a thing.

When you first started nomad-ding, how often did you get caught out by some custom you never heard of before?