I don’t understand the world of people who have this degree of free time (time / energy) given how much everything costs just to be alive. Maybe they live in a different universe where programming for fun and first principals of “learning” matters. But for the other 99% of humans, costs have gone up 40% due to money printing and anything like this looks like a waste of time.
Hobbies are kind of by definition wastes of time. That's what makes them different than work.
If you only want to learn programming for work then you obviously have a different perspective than people writing chess engines from scratch for fun instead of using an existing one, right?