There is a lot to be said about the value of inter-generation interaction. 

Recently, I watched a recording on that subject from a panel at Aspen Ideas. Panelist Marc Freedman, author of  How to Live Forever: The Enduring Power of Connecting the Generations, told the following story:

In a senior living facility that encourages young residents by offering them affordable rents, a classical-music-loving 94-year-old woman named Carla became a friend of a young viola-playing next-door neighbor. They formed a deep bond over their love of music.

When the neighbor became engaged to another violist, Carla did not get an invitation to the wedding.  Instead…

She was the maid of honor!