In most states, the power company cannot connect service to a home or business until it has been inspected by a building inspector... This is to keep the number of fried customers to the lower possible value. And yes, it is possible to do your own power box work, but expect the inspector to be very thorough if you aren't also a licensed electrician.
So, who's checking these local LAN's to make sure they don't melt or burst into flame once hooked up?
very broken analogy. as opposed to the house wiring, the lan is not the problem. it's the stove, aka ms windoze. and you don't need to go to the home to inspect it, you know it was broken when it was shipped from the factory. and the user was neither sufficiently warned nor sufficiently educated on how to avoid its worst risks. randy