Because in most of the country broadband providers and cell varieties are not the same. There are limited markets where verizon or att offer both broadband and

Because in most of the country broadband providers and cell varieties are not the same. There are limited markets where verizon or att offer both broadband and cell service. And the other big cell carriers don’t have a broadband market. To your other point. Most gpon modems are arris or some other brand all in ones these days that carry voip converters/cable television and then normal tcpip traffic. They are bought to maximize profits and rental fees and not with packet forwarding in mind. There are acceptable levels of loss and latency on residential networks that don’t generally carry over to campus or business services. Add in they also run dns, dhcp and firewalling and often some “extra” parental controls and sometimes a vlan for guest access. It’s not the residnetial customers fault for the placement either. But most demarcs for telco and internet, even in new construction is in a utility room that is generally right next to other utilities. At least in single family homes. In apartments sure they may be better placed but still often next to the air handler. And give. The range of 5g, the first floor or two is all that matters.