I too am old enough to have seen a lot of unnecessary tech change cycles, and one thing I've noticed about this industry is no matter how foolish a trend was, we almost never unwind it.
All the people I know in the US with those skills make huge amounts of money- at least, the ones who haven't already retired rich.
Not the ones maintaining frontend web apps or "vibe coding".
As for trends, I've been around long enough to have seen this cycle a couple of times...
My point is there aren't many of you, are there?
All things considered, keeping up with the industry trends is generally a more reliable career path.
I’ve survived every single layoff season since 1995.
If I've atrophied in certain aspects of my thinking, I honestly think I've more than made up for it in learning how to engineer the context and requirements for Claude Code more effectively and to quickly dive in to fix things without taking my hands off the keyboard and leaving the terminal.