I think the question of how to attract a new generation to a forum like this is a complicated one. Like Norm said, many younger folks use other means to communicate. On top of that, a place like this attracts those of us with a strong sense of nostalgia for the time and place in which we grew up. Many of us grew up in a time when things like the corner store, the local movie theater, the neighborhood muni route, and the neighborhood school were things we identified with that gave us a sense of community.
Today things are so different. Movie theaters are being replaced by on-demand home entertainment, most kids no longer go to their district school, Amazon and Instacart are replacing the corner store, and so on... In my opinion those are some of the reasons why it's hard to attract a new generation into discussions about neighborhood nostalgia. To keep a forum like this going those of us who have been here for a while need to keep talking. And when someone new appears, they need to be drawn into discussion with questions people like to be asked.