Amen! I went to a restaurant that had this layout. Each stall was like it’s own little room with a full sized door and a shared sink area. It’s more efficient use of space and you get a better stall. The only thing that I think would make it better would be a small side area with a couple urinals.
When people refer to metal balls as ball bearings. A ball bearing is an assembly of outer ring, inner ring, balls, and a cage/retainer. I worked in bearing manufacture for years and they’re just referred to as balls. To be more specific, it would be a bearing ball, not a ball bearing.