What you are witnessing is the consequence of the social engineering that has been going on over the past three decades or so. The apprenticeship scheme, which worked successfully for at least a couple of thousand years, has been abandoned and everyone gets to have a stab at a "degree" instead.
The pool of skilled tradesman is rapidly drying up, and they now spend their time trying to supervise the work of less-than-skilled sub-contractors. You get what you pay for, and the going rate is rpobably considered a bargain.