The purpose of no bathroom doors is to limit their use to single people or couples. They want business travelers to get a separate rooms or upgrade.
I can assure you not even single people nor couples want doorless bathrooms.
One of my bedrooms at home opens into an open concept bathroom. No doors, vaulted ceilings, open.
I really don't get this.
I don't want to feel claustrophobic.
Edit: Like these -
https://34stjohn.com/blogs/inspiration/how-to-pull-off-an-op...