Three years ago, when I met someone 21 years my junior in an online class, I never thought we’d become close.

Each week in a writing class, we filled the video call with highly personal details about our lives as we learned how to tell our stories. We spilled our emotions in front of dozens of strangers and eventually branched off into our own smaller writing group, bridging the divide between New York and Chicago, where we each lived.

The vulnerable elements of our work were much more revealing than meeting a new friend in any other environment — and we were instantly connected on a deeper level.

Our relative ages weren’t actually important.

At…