Earlier quoted context omitted.
Why would I want to replace my home internet with something less secure, less reliable, lossier, and slower?
In London, in an apartment block, I tried BT broadband (60Mbps max), then Virgin cable (100Mbps for £55 / month, prices go up for more speed), then EE 4G (£30 / month for 200Mbps +/-50Mbps, unlimited d/l upload is also over 60Mbps, about 6x on Virgin). I don't game, so don't care about ping. So, where I am, using 4G for my home internet is faster and cheaper, and I can gift data to my phone. I have not had any issues…
We've had 4G for ten years or more now, I'm not ready to put my faith in 5G and don't expect to be any time soon.
I almost signed up for a new office a mile from the centre where the best cable speed on offer was 20Mbps and the thought of relying upon mobile internet was enough to make me think twice.
I'm currently in semi-rural location, no mobile service at all indoors but, 200 metres from the fibre cable cabinet, enjoying cheap and reliable 60Mbps without a hitch.