I can’t see happening myself, at least not for many, many years or even decades because of the nature of how 5G technology works and the high radio frequencies it uses.
The local Vodafone mast to me has 5G enabled and its footprint compared to 4G must be around 25% and even lesser for compared to 3G. This from a full blown mast and not one of those on top of a lamp post.
For it to work as they think it will work every lamp post in a city street will need to have a relay attached to the top of it.
It will be good for things that don’t move about with the likes of home high speed broadband where either you get a 5G signal but your next door neighbour doesn’t and even on foot the signal will be flaky but travelling even at low speed and 5G will be on off every minute of the journey.
Lets face 4G suffers enough in the car and they will need 3 or 4 times more mast to get the same coverage as 4G.