For myself, my first career was wrecked by new technology. Now I am 40 years old in an entry-level SWE position alongside 22 year olds working under people in their late 20s or early 30s. Not only would none of these people accept me as a source of knowledge but they can hardly bare to give me the time of day. I am very proud of my contributions to the team and I don’t hold it against them, but the makings of dignity are taken for granted far too often.