I’m over 50 and still a professional developer. Sometimes it’s fun, but I’d retire if I could. I don’t have any other realistic option to provide the same quality of life for my family, due to health/mental issues. I worry constantly about being laid off again and often feel like I don’t belong. No offense to the young guys, but I’d be much more comfortable working with older developers, a regular relational database, and racked servers at a relaxed pace, but I’ve interviewed with small shops like that, and they smelled of death.