I'm not the person you're replying to, but we did this in an LA suburb.

Among other things that have resulted from it:

One of our neighbors invites everyone over for 4th of July every year. We have a block party where we block off the street once or twice per year. Neighbors have been over for backyard parties, my wife goes to birthday lunches with the wives on the street, and there's a giant text thread where people ask for help/etc for things.

During the first year of covid, we did a special neighborhood Halloween, where everyone on the block put out bags of candy for neighborhood kids to go house to house and pick up.