Age does make a difference. They seem to be more considerate of older applicants but not always. I filed for mixed connective tissue disease which is lupus, scleroderma and polymyositis. Even though I was totally crippled I was turned down 2X and had to file a 3rd time and finally got approved. Used a lawyer and did not have to appear before the court.
Remember that the criteria is total disability for at least 12 months.
Tough process and degrading to those who are truely deserving.
Bill