Also 55, though didn't start programming until 1978. I love it, but I'm more apprehensive these days about being able to continue as the free-lancer I've been for the last ~15 years. I have a few biz ideas (and still riding one from 18 years ago that has made me a tad lazy), but sorely need a collaborator or two.

Maybe I should do a graybeards Meetup group or something. Get some reverse-discrimination going...