First, from a sanitary point of view, the ventilation in the bathroom is definitely not very good. Odor and moisture will be released to the outside, affecting the bedroom, so you can't open the door often. Use an exhaust fan to exhaust the air.
Secondly, judging from the traditional concept of Feng Shui in China, the bathroom is dominated by water in the five elements, with heavy yin. Too much access to the bedroom will make people imbalance between yin and yang, which is not conducive to health, especially those who avoid water. Moreover, the dirty gas in the bathroom will bring bad luck to people and make the family's fortune decline.
Hope to adopt, thank you!