Many municipalities already have that in place (for sending out alerts about water quality etc).
The problem with cell towers is that the infrastructure is more brittle with more moving parts. There's been cases where fires, power outages etc in small towns have caused base stations to go offline, cutting whole towns off from communication.
Not to mention the recent case where penetration testing done by another operator in Europe accidentally caused the entire cell phone network of the largest operator in Norway to go offline for half a day.
The problem with cell towers is that the infrastructure is more brittle with more moving parts. There's been cases where fires, power outages etc in small towns have caused base stations to go offline, cutting whole towns off from communication.
Not to mention the recent case where penetration testing done by another operator in Europe accidentally caused the entire cell phone network of the largest operator in Norway to go offline for half a day.