Depends on your tolerance for code spelunking. Back in the 90s I was encouraged to do Y2K prep because I had some COBOL experience, but I really hated pawing through old code. To be fair, COBOL was designed to be self documenting and English-like. But I’m glad I got into web dev instead back then. It was right at the dawn of “dynamic HTML” when web pages started actually doing things. Very cool time. Right now I’d be more inclined to go into helping companies recover from failed AI projects.