Let's face it- the retail/ DIY business is here to stay.
I'd just as soon spend my time in more demanding electrical tasks than the plug in/ unplug duties that Carnegie Hall electricians have.
That does not mean that there are not problems with DIY work. Some of my business comes from cleaning up DIY work (or that of 'maintenance men.')
It is unconscionable the practice some stores have of taking inexperienced, untrained employees, showing them a tape, then asking them to present themselves as experts, and give 'clinics.'
Moreover, these retailers help keep the trade suppliers on their toes. Here, the "world's largest electrical suppler" can't be bothered to stock the ground rods our local code requires, in-the-ground boxes, or 2-gang outdoor in-use covers! The folks at the retailers love that!