One of the primary reasons that carriers are interested in 5G is because for the last decade they have been swapping spit (trading customers between each other, carrier A lowers the prices and take customers from carrier B, who responds in kind and takes from carrier C who responds with a marketing campaign with some deal on a phone etc. and etc.)

What they all are craving is new revenue. Once everyone who wants a cell phone, has one, it becomes a commodity item and service and that means, if anything, one price war after another. This is why they are interested in 5G and MEC (Mobile Edge Cloud) they are looking for new revenue. Right now, as part of the 5G push is the idea of wireless home internet, which is basically just a wifi AP that connects to the internet via the wireless network. To do that of course, you need a lot more capacity, 5G offers that to some extent, but realistically you need a ton more spectrum, which is why you have seen a spate of auctions lately.

Make no mistake here, 5G Home internet is most certainly not a cost savings approach for the carriers, they are literally spending billions on it, in hopes of luring customers away from the cable cos and telcos or other wired providers. Will it work? Perhaps. Time will tell. But to be sure, in my view, this is very good for the consumer of internet services, it will almost assuredly provide the customer with a lower cost per Mbps due to increased competition particularly with all the LEOS (Low Earth Orbit Sats) also in the mix.