People in small towns and some cities in the Americas (North and South) have somewhat casually set up CJDNS an Reticulum networks. CJDNS had a lot of buzz in the 2010s.

In some places these mesh networks have nodes that offer paid gateways to the conventional internet.

Writing user-facing social/messaging applications that can work seamlessly between emergent mesh networks and the conventional internet, using cryptography based zero-knowledge tricks to preserve privacy, is necessary for these mesh networks to gain traction outside of just tech enthusiasts.

Some rural areas centered around some small towns have already done this but have kept it to themselves (understandably so).

  https://en.wikipedia.org/wiki/Cjdns

  https://reticulum.network/