The average age of the signers of the Declaration of Independence was around 44, with many of them 35 or under.
FR is a place where retirement age or above predominate.
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Problem with your theory is that in n the time of the signers people were ADULTS at a much earlier age and secondly did not reach the advanced age of people today as a general rule. Children today are weaklings compared to children of my parent’s time.
Cut off Medicare and Social Security to the elderly rebels and see what happens!