:raises hand:
I'm now 40 years old and recently took a position as Software Development Manager. I manage a small team (currently 2 developers, 1 test engineer, and a product owner, and should be adding 2-4 more devs over the summer). The PO and I still wear our developer hats for a good portion of the day.
The "why?" is simple - I like the challenge. Yes, I can challenge myself with 100% technical tasks, but moving into management was something completely new.
The move into management has been gradual. I followed a standard developer path for years - dev, senior dev, principal dev, architect. Did the architect thing for a few years, then decided I wanted to work on my soft skills, so took over the scrum master role. I have a great boss/mentor, the position worked out well, and I recently took over a full development manager role (basically, same as I was doing, with the addition of personnel management).
How did it work out? Pretty well, I suppose. So far, I'm enjoying the new responsibilities.
Regrets? No, not really. But, I'm also not far enough removed from 100% developer that I couldn't pick up that hat again should the need arise.