And why was that down-vote worthy? Globally available FREE internet means that devices in our homes could bipass our routers to signal home with little ability to oversee and limit that signaling save throwing the device away and a faraday cage. Today the same is also possible with 3/4/5G antennas, true, but the cost of sending data over cellular networks on billable data accounts is probably just too cost prohibitive for IoT device manufacturers to do, so they just do it through your wifi.