I've met many too, but like I said, most are former developers, or have been developers for some time. They're the ones with war stories about having to load their apps in on paper tape and they're not exaggerating.
As a single data point, a colleague of mine is a 50+ developer, who was a nurse in the army until a little over a decade ago - and he learned for the sake of a career change, he didn't move into something that he was already doing on the side, or had done when young.
