In a local context, many kinds of "social networks" or spaces to share things with other people from the same area, specially related to art and culture. Also many local associations organizing events could use unique identities to make it easier to make reserves for events with food, races, slots in talks, concerts, etc. Many other kinds of specific applications are also possible. You could even organize games and augmented reality activities much more easily if people didn't have to create accounts for everything, we had an easy way to verify that a human is trying to use the service... and even more if we could verify some info like "this person is from this area" (though there are some workarounds for that). Mostly, use tech to reivindicate public space, which public administrations have a tendency to mismanage as if it was their own private space (lack of vision is typically also an issue). There are many other ways to do similar things, but that's what I had in mind when I talked about democratization.