[p1esk]

You're never too old to "do what you do", unless you have nothing to show for it. Have you written software that others find awesome and useful? Are you still capable of writing such software? If so, you have nothing to worry about.

[ascendantlogic]

Right, it's not a question of being too old to do the job, it's a question of the PERCEPTION of being too old to do the job.