I sort of have a love affair with my work. Many of us work far too hard and we don't put enough value in the epicurean, sensual part of life.
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.