I think you might be comparing old fashioned electricians with modern day builders/kitchen fitters/plumbers who may not know their electrical a**e from their electrical elbow
thats precisely what I'm doing.
In the 14 years I've been doing this, I can only remember 1 fault highlighted by T+I on my work, which was an RCBO out of spec by a couple of millisecs. (I have had a couple of connection faults when using a helper on a bigger job, but not with my work)
I've never had bad ring continuity, never had wrong polarity, never had an earth loop too high to operate the protective device.
I expect most experienced electricians can make the same claim. All T&I does is prove it so. So when a (properly trained) spark says he doesn't bother with all the paperwork, it's highly unlikely he's leaving a trail of destruction that'll challenge a Bruce Willis movie.
Whatever you feel, these people are not the people responsible for the introduction of part P. Yet they are, by and large, retiring from the trade rather than "fuss about" with registration and paperwork, and I can't say I blame them.
But the people responsible for regulation being introduced to the trade- we all know who they- by and large kitchen/bathroom fitters "yes I do the electric - we fix new sokkit - we fix metalic sokkit - we no rewire - new sokkit is good - new light is good - only keep tripping out - we try again we get right soon - ow I get shock - haha - is all good"
are, to this day, are making up the shortfall of the above sparks being ousted. AND NOBODY "IN CHARGE" GIVES A D*MN. Does anyone think this is good?