I do. They almost certainly know more than I do about anything of any substance. Maybe they don't know node.js and mongodb as well as some young person, but they can figure that stuff much faster than I can learn any of the stuff they've learned throughout their life. I worry more about the opposite: who wants to work for someone young enough to be their child?
Exactly, there is nothing magical about implementing the Reactor pattern in a 25-year old language.
I was just reading a response to this article with someone who was much older, like 50 or 60 or something, also said he was a Node.js programmer.
I've actually been really paying close attention to trends, new programming languages, etc.
Node.js is kind of old news. The coolest new programming language I know of is Nim.
Stuff that I think that matters for the future is higher-level semantic metalanguages for information exchange and information systems factorization, fully distributed computing, connected devices, and custom circuits/electronics.
I didn't mean to imply that no "older" developers are interested in newer things, just that it really doesn't matter if they aren't.