That's obviously the correct process (whether or not the installer is a qualified electrician). So why ....
I'm a bit confused - are you saying that the "lot of us" you referred to above does not include yourself?
Kind Regards, John
You have a real issue with me. Every time I post, you take it upon yourself to show me where I'm going wrong. Two question marks, seriously?
How simple do you want it? Some of us (as in people installing lighting circuits) will install 1.5mm2 cable as this is always suitable, where 1.0mm2 is not always so. I'm not in that camp, but neither practice is right or wrong.
Is that clear enough?