When Docs are in the throws of DXing you, age is usually bantered about. Obviously they know about as much as we do..
My Neuro, thought I was too old, at 35, for MS..

When I told him that I had had SX of MS, since I was 24, he perked up.
My MS is mine and yours is yours, so it doesn't matter, who's got what at what age...it doesn't answer our questions.