There has to be a cost-benefit analysis.
For the price of installing all AFCI:
How many old and poorly wired homes could be gutted out and rewired safely and up to snuff, and how many lives would that save?
How many defective old appliances could be recalled and traded for new ones with safe designs?
How many smoke alarms could be bought and installed?
To reduce a problem (fire deaths) in a population you don't expend all your effort and money on one little chunk because you have a solution that works for that little piece. You expend effort and money in proportion to risk and what gives the greatest reduction of those most common hazards.
If it's 1918-1919 and 40 million people are dying from the flu, and 40 thousand are dying from tuberculosis, you don't spend most of your millions looking for a cure for TB! Matt
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