Why a relative replaced some perfectly good Michelin Tires?

I just bead blasted and powder coated a wheel from my '64 Valiant and remounted the 13" tire. The tire has been on the car in my shop when not driven and only has a few hundred miles on it since I bought it. It looks brand new. No visible deterioration at all. I took it to two shops to be balanced and neither would touch it as the date code was beyond what they are allowed to service. I was told at both places that they are not even allowed to put air in a tire that is over ten yers old. The only way they can even touch them is to remove them for disposal. One of the shops told me it is federal law and the other shop pointed me to a laminated card on the service counter. When I asked who gives their shop that direction he said that there is a tire manufactring group that they must belong to which sets standards for their shop in order for them to purchase the tires they sell. He gave me a copy of the card which he claims is provided by the "association" and not the tire chain. WhenToReplacYourTires.jpg

I did take the tire to an individual service shop who balanced it. He did say he is getting pressure from a couple of his tire distributers, which is passed down from the manufacturers, to not service tires older than six years but he keeps ignoring them and they keep providing tires.