BIG caveat: my family and I look a lot younger than we are, with no effort at all besides clothing and wearing a backpack I could pass as a 20 something college student through my early '50s. I also had to be careful in talking about my background, in one memorable 2003 interview I let slip that I'd worked on PDP-11s and the technical interviewer who was probably around my age exclaimed "Just how old are you??!?!??!!!"
Which wasn't intentionally an illegal question, just that the mental model he'd been building of me suddenly went TILT. I did get that job, software archaeology where experience made a difference.