This can work for small scale networks but it needs to be a paid service model to scale it(at least for usable performance). A spine/leaf arch would be great f

This can work for small scale networks but it needs to be a paid service model to scale it(at least for usable performance). A spine/leaf arch would be great for this imo. The leaves can be local cells of wifi networks. The spine can be operated by payment collecting individuals that maintain a high speed(10g+) and low latency uplink to the internet and network gear that can handle the traffic from the leaves. In spine leaf, leaves connect to multiple spine nodes as well (don't have to worry about spine operator reliability too much,could potentially load balance over spine) That being said,I hope any modern wifi network assumes wifi encryption is not reliable and instead implements a layer2 or 3 tunnel (macsec/.11ae and wireguard respectively)