RE:ABC Detroit Motels and hotels are likely to end up with this technology, cruise lines too. Anywhere where you'll be staying inside for a considerable amount of time e.g. multiple nights at the Holiday Inn - is reasonable to expect demand either in the immediate term or down the line once more folks are vaccinatied (not that that will reduce risk of transmission from the viral varients altogether).
Safe spaces is as much psychology as is virology.
GLTA