It is very common in China for grandmothers to take care of grandchildren, as the sons and daughters work. It isn’t uncommon for two working adults to support four grandparents, themselves, and a child. Grandparents are critical in the upbringing of the children.
Guiyang has a cool fashion for carrying babies . . . wawabao “baby bag”. The minority people of Guizhou create elaborate embroidery for the baby bags. It is common for the children to ride out in the open on the back or chest of a grandparent.
I have a friend that emigrated to Canada from Guiyang. When he had his first child I delivered a baby bag to him. He almost cried from homesickness.