It's very, very easy to get into a "grumpy old fart" mindset, where anything new or changing is dismissed out of hand. I've had to fight hard to stop this from happening, and it's still my first response to anything new.
Having said that, there are sometimes good reasons for dismissing something new. But only after taking the time to understand it and why everything else thinks this is cool.
If I'm interviewing a 50+ for a job, I want to see evidence that they haven't fallen into Grumpy Old Fart syndrome.
The converse is also true - if I'm interviewing someone younger, I want to see evidence that they're not caught up in tech fads. Too many times I've seen good tech thrown away because it's not in the hip-and-happening language/framework/platform/etc. And there's a lot to learn from the mistakes of the past ;) And having some idiot kid explain to me why Mongo is soo awesome and SQL is obsolete gets tiring fast [0].
But to be honest, I'd be worried if I had to interview for a role. It'd be a sign that my network wasn't where I'd like it to be. Keeping that up to date is as valuable as keeping the tech skills sharp.
[0] example at random cough