What happened to Hebei uninhabited village?

What's going on in the uninhabited village in Hebei? The largest uninhabited village in Hebei, I don't know what happened here at the beginning, and it all moved away overnight! This is Shuangmiao old village in Yangyuan County, Zhangjiakou. Many people are curious about why they moved away. I think it may be moving to a place with many people in the city and convenient access. For example, everyone has money to buy a house in other places, so they gradually move to each other and find their own way out to become an uninhabited village. In fact, many places are like this. When the economic conditions are good, only the old people are left in the village. Filial children live in the city with the elderly.