Well, we bought a rental property from a couple who had been, in essence, abandoned by their 3 kids who lived about 1,500 miles away. The man was 91, his wife was 85 and in poor health, and they were moving to an assisted-living facility. We heard later that the 91-year-old man attempted to moved their belongings himself, because they had no friends to help them, the 3 kids didn't help, and the couple did not want/did not have the $$ to pay movers. The neighbors from whom we heard this sad story, felt "guilted" into helping the couple move.
So, if kids are one leg of your retirement plan, be sure it's a sturdy one. Or have neighbors who are susceptible to guilt.
Amethyst