Rather than living like animals in a zoo, desperate and alone in the cave mansion, it's better to be free and at ease in the official Refuge Center.
Parents and children don't really have endless topics to talk about. Plus, because of various events, Dong Tianyu can't chat with his parents often. So rather than leaving his parents lonely in the cave mansion, it's better for them to live carefree in the official Refuge Center.
The reason why Mr. and Mrs. Thompson can live so comfortably now is not just because Dong Tianyu consistently provides them with all kinds of resources, but also due to the order in Pengcheng which remains remarkably stable.
Although many novels depict natural disasters and the apocalypse as similar, the reality is vastly different.
The apocalypse signifies a breakdown of social order, where the entire social system disappears. At that time, survival becomes the top priority. No one considers future development; everyone lives in the present.