Earlier quoted context omitted.
I do, but with a kid my time is now limited. Unused knowledge has this habit of being forgotten. It turns out to be a terrible waste, at least from my POV.
There is a good video from Niel deGrasse Tyson talking about learning. https://m.youtube.com/watch?v=utedyJ7QRBs His argument is learning is never a waste of time, even if you don't ever use and forget everything you studied. The simple act of learning is beneficial, it helps build connections in your brain. You develop skills that can be applied to other problems.
Everything has a cost.
I'm very heavy on learning for learnings sake but I don't like the way it's framed as the correct thing to do.