Ask HN: Father Is a 61/yo Dev and Just Got Laid Off. Advice?

Just had a very dishearting conversation with my pops about his career situation. He's been programming since he before it was cool (he's got wary stories that involve punch cards) and he was "the guy" I always turned to for advice when I was stuck.

Today the roles have flipped and he's asking me what I'd suggest he do to be "competitive" in the job market.

The only problem is I run a startup and don't have any corporate experience... so I'm at a loss on what advice to give him.

Any insights from some more "seasoned" devs about how to get traction in the job market despite his age?

(His most recent roles as a senior developer on mission-critical Java and PHP applications.)