Anecdotal, but where I work, I noticed most of the older programmers are working on systems like AS/400. Makes sense though, many such systems are still running

Anecdotal, but where I work, I noticed most of the older programmers are working on systems like AS/400. Makes sense though, many such systems are still running and functional in many businesses, and they have a skill that few have nowadays. From what I've gathered from talking to them, IBM still provides regular updates for these systems, and while change is slower than would be experienced by a web developer, they still are learning and adapting to changes made in these updates, and have to adapt to interfacing with new technologies adopted by other areas of the business.