My Dad once called himself a "Yankee Ole Timer", even when he was in his thirties. His hair was white as snow by the time he was 30!!!! I have always maintained, as did he, that one is only as old as he allows himself to be.
SoMo would be the first to tell you I am as young as she!!!!
Seven decades just applies to the bod, not the mind. Incidentally, I don't take issue with "reactionary", as I am then in good company, Washington, Madison, Jefferson, Franklin, Sam Adams and just about all the Foundings.