I run my entire house from 4G.
BT are too stupid to sell me a decent speed ("probably 4Mbps down, 1 up" in the middle of a city center inside the M25...). Nobody else has any facility independent of BT.
I would probably go to 5G if I knew there was a good boost in signal/speed. Otherwise, forget it. As it is, I'm just artificially limited on 4G... unless the limit on 4G is 30Mbps exactly, despite the fact that I live opposite the pole that supplies it and have a 4G antenna on my window facing it.
But 4G is enough to run my entire house and all the gadgets and even stream HDTV out of the aerial to my 4G phone. And I have an unlimited data package with a stupendous "fair use" bit before they start slowing me down (1000Gb/month). And it costs me £18 a month, and a little £50 wifi router that's the size of a bar of soap and fits in my pocket if I should decide to go somewhere (it tends to stay at home now, connected to the antenna, because then I can stream from that to my phone wherever I am).
5G isn't going to sell - especially as the dongles/routers are still relatively rare and expensive - until you can provide a service capable of utilising them. There's no point me buying a 1000mph car if every road has a 30mph speed limit, except to show off.
Strange how they can provide service to the 4G mast that they will upgrade to 5G soon enough to cope with thousands of users doing what I do, but they can't just upgrade the line that's still sitting in my porch, unused, because they charge a £160 activation fee, £25 a month, on a 24-month contract, to give me more than 4 down, 1 up.