I was very close to my mother, and her death, which left a gaping hole in my life, has been very difficult for me and my father in a lot of ways.
At certain historic moments, grandparents took on childrearing responsibilities. In many cultures, they still do. Chinese grandparents who are able to retire at 55 are seen all over Beijing bouncing grandbabies. In the United States, we can't afford to retire at 55.

