I don't know. IT is a bit different in that regard. As a doctor, even if the system is shit, you still help people directly. As an engineer, you build something tangible that can make people's lives easier. And so on. In IT, though, the impact often feels much more indirect. Most of the time you're optimizing processes or helping businesses become more efficient, rather than improving people's lives in a direct way. You're often several steps removed from the people who ultimately benefit from your work. I'm not saying that's a bad thing, it just doesn't feel very meaningful to me.

If you grew up with a Commodore your mid life is way past.

There's certainly that. But a lot of the points of the sibling and nephew comments here ring true, too.