The NEC is a model code written as a guide for adopting into law at state and local level, until it has been included into adopted local or state law it is not enforceable as a law.
Here in Indiana we fought to install a state wide code system to eliminate the problems of having different codes in each and every town as there was very little to no reason to have these differences. but country wide we can see there are reasons to have differences and some include things like Hurricanes, Earthquakes, and other phenomenon that can make requirements for safe installations different, would it be fair to make the whole country meet the requirements of Hurricanes or Earthquakes?
Another item is the cost upon the ones who have to pay for the work, the customer, as the people of that state they have the right to choose through legislation what they want imposed upon them, and we see this in codes that are put in these model codes that offer very little results in actual safety versus cost, this was found true with AFCI's and a few other items that Indiana amended out of our laws.
Now should we be allowed to choose what we want into law, I think the very nature of our freedoms depends upon having this choice, if we do away or allow these choices to be done away with then we have given up these very freedoms that our Fore Fathers built this country upon.
We should always be allowed to live as dangerously as we wish, it is part of our life and heritage, many of the things we so enjoy in life can be and many times are dangerous, everything from skiing, to parachuting, rafting, to base jumping, bungee jumping, even foot ball could be seen as dangerous, would we want to be driven around by only "professional drivers" and not have the freedom of jumping in to a car any time we want to go somewhere?
I don't know about you guys but I do not want to be put into a padded room for the rest of my life, it is the "common sense" that was taught to me at a very young age that lets me know what I can do safely, and this "common sense" is what has slowly been going away because of laws that have padded our world, we think we are so protected that we fail to teach our kids of the dangers of life anymore.
People we live in a dangerous world, its a fact, now learn the common sense that will keep us safe!!!
We don't need laws to do this.