Although the state had issued many strict regulations to prohibit mutual exchange between urban and rural areas, such as requiring introduction letters for entering the city, riding on transportation, and staying in inns, rules cannot completely override human sentiment. Plus, considering the situation of people frequently on business trips, there was this regulation allowing temporary transfer of food and oil relations. It's just that the duration for their siblings was a bit long, but their parents were not troubled by it.
Xibao's food and oil relations were not transferred initially. Later, due to staying in the hometown for a long time, they were temporarily transferred and registered in the city.
Apart from the educated youth who went up the mountains and down the countryside, it was quite difficult to transfer household registration between urban and rural; not even marriage could change that.
