It's happening already. Verizon just announced $50 unlimited home internet: https://www.engadget.com/2018/09/11/verizon-5g-home/

> Priced at $50 for people who already have Verizon wireless and $70 for those who don't, it's promising speeds of "around 300 Mbps" up to 1 Gbps, with no data caps.