The funny thing is that I'm not even that old, reading my initial comment you would think I'm talking about the 80s or 90s, but I got my experience with COBOL in 2009-2013 (not 4 years straight, I did other stuff too) when working at an insurance company. At the time almost the entire company was run from a few AS400 (and A LOT of office-people doing insurance stuff, of course).