There hasn't been open public wifi networks near where I live for over a decade. It also seems increasingly rare for businesses to have them (they usually have an SSID and password posted somewhere). I don't think this is a thing.
But here's where it might go.
Verizon and other cell companies bundle streaming apps with their plans. It's really not a far leap for them to bundle a TV as well. Especially if TVs get really expensive due to whatever factors - get a 120" TV for just $30 extra on your bill over the next 5 years. And Verizon could contract with an OEM to make a Verizon-specific model, and put a 5G modem in it, and lock it to Verizon service. Verizon's just an example here, AT&T, T-Mobile could do the same.