[thackney]

product life cycles will insure that within a decade or so essentially everything will be protected

This is not going to be the case in industry. And when was the last time you replaced your power distribution system in your home and place of business. This is not just about end devices and high voltage lines.

[null and void]

That's why I included low voltage local lines. Neighborhood by neighborhood, block by block and eventually house by house.

Besides, it's like a border fence; if you despair that erecting a fence at the highest traffic point won't stop all crossings instantly, if you pee and moan that it will take years to protect the border, the default is no fence, no control, and ultimately, no country.