Software Developers after 40, 50 and 60 Who're Still Coding
".. However, StackOverflow’s survey on age shows that there are just about 13% of developers after 40. Where are the others?"Obviously not on StackOverflow.  Perhaps they have enough experience and knowledge to not need the site because they either know how to read tech books and sites to get the info they need when they have a problem using pre-existing docs, or conversely, are fully able to debug issues themselves.That's what I do, anyway.  (I'm 46)