i do think this trend is happening and will unlock some use cases. Not sure about P2P though. One reason I switched to home 5G is because i can get 40 mbps up for $25, where I needed to pay $100 to comcast for similar up speed. My main use case is streaming my playstation 4 remotely so I can play on the go.
I am using tmobile's Home 5G right now. I was waiting for Verizon for the mmWave 5G because I think the latency will be lower. If Verizon comes around soon, I'll switch. I have both Verizon and Tmobile phone service so I can get the bundle discounts with home through either. I think both of them are ~$50/mo standalone or $25/mo with a 5G smartphone plan.