It is not good to have a bathroom in the bedroom, because the water vapor is too heavy and the humidity is too high, which is not good for life. Bedroom is a place where people spend a long time in a day. If a person stays in an environment with high humidity for a long time, especially when sleeping at night, it is easy to get sick.
Similarly, if the kitchen can be ventilated, it is not good. Why? Because gas is used at home now, it is easy to be blown out by the wind. Think about the consequences. This is the so-called great murderer ~