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.
Disappointment over nationalistic authoritarian regimes may have contributed to the fact that today religion offers a new and subjectively more convincing language for old political orientations.