I think the developers who are more like musicians [ever hear of a retired musician?] keep at until they go blind. I work in a 2 developer shop and the "kid" is

I think the developers who are more like musicians [ever hear of a retired musician?] keep at until they go blind. I work in a 2 developer shop and the "kid" is in his early 40's, I'm 49 and the contractor we have in once in a while has white hair and hearing aids (he's awesome btw).