On 4/15/2019 8:26 AM, Jeff Layman wrote:

Basically, why are the components fitted to the removable front plate?
Why aren't they fixed to the back of the box (whether that is fitted on
or in the wall)? It seems to me that as the wiring - and that could be
mains cable or coax - enters through the back of side of the box, it
could be connected directly to a switch, socket, or whatever which would
itself be screwed to the back of the box. The front cover would just
have holes in it to accept the 3-pin socket, coax socket, switch, fuse,
etc, and that would be fixed to the box in the usual manner.

That's how it's done in North America - certainly makes decor changes
easier...