On Fri, 24 Jul 2020 12:06:45 +0100, Andy Burns wrote:

seems a very poor way to attempt to extend wifi, by wifi - using
potentially poorly located sockets low down on walls.

with metal backboxes, or foil-lined plasterboard ...

Ah but they are out of sight. No nasty box with distracting flashing
lights up on a shelf with sticky up things and a wire running across
the wall to a wall wart.

The fact that in most houses they could cover the whole house with a
single properly placed AP doesn't come into it. Not helped of course
by the predominance of the "single box" containing, the modem,
firewall/router, network switch and WiFi AP. This single box being
again stuffed out of the way somewhere.

--
Cheers
Dave.