The kitchen is a place to prepare food. For family health, food should be kept clean.
Toilet is a convenient place for daily life, and some discharged dirt is difficult to clean, especially some germs will grow in a humid environment and spread to the kitchen through the air, which will reduce food safety a lot. The kitchen is very close to the bathroom, and there will be problems with hygiene. It is difficult to remove the dirty air in the bathroom, which is easy to breed bacteria, pollute food and endanger people's physical and mental health.