This is an argument against US operators. Higher density means higher utilization and therefore ROI for each cell tower. European cities with higher density than Manhattan have far better mobile and wired internet.
Not an expert here, but aren't there more constraints such a spectrum if you have more population density? You can only fit some much data in an air band no?
iPhones still use the lightning port, and Ethernet to lightning ports are a bit on the pricey side.
Also, while I hate t link to a lifehacker article, the lead photo is pretty hilarious in terms of the need for that many adapters to connect an iPad or iPhone to Ethernet and to keep it charged. (https://lifehacker.com/hack-together-a-way-to-connect-an-ipa...) Android isn't much better, but at least it uses a more common and cheaper USB-micro or USB-C.
