Aside from radio meshes (typically wifi) i have seen little which could actually replace internet. And yes it would be great to have something like that, but few people see the point. Yes in an ideal world, every one would have bought an
open mesh node in their home, which is essentially a neighborhood wifi. But it is slow and laggy, and people fail to see the point vs commercial internet. But it would hurt you to purchase one and leave it running, while optional, you could connect your node to the internet so that it gets a bit more "attractive", and have it as a form of "guest wifi".
Then after reaching "critical mass" we could start doing serious things, such as running bitcoin nodes on it etc.