Why is there no door in the bathroom of five-star hotel?

there is a door. Five-star hotels use push-pull doors, but also folding doors. Five-star hotels have doors in their bathrooms. Five-star hotels are the highest level of "star-rated tourist hotels" (referred to as "star hotels" for short). The National Tourism Star Hotel Evaluation Committee established by the National Tourism Administration is in accordance with the "Classification and Evaluation of Star Hotels".