Reading all of this makes me smile.
I remember reading from somewhere, quite some time ago a scholarly analysis about hobbies as to how they relate to our professional lives. While I can't remember the exact term that was used, I will use my own term--Contrast Theory of Life Satisfaction.
The idea was that people tend to live two different lives--one at work, the other at home.
For instance, say a person worked at a job that was very dirty (mechanic, garbage collector, anything hands-on that then got either dirty or messy). That person's home was likely to be very neat, tidy, organized and clean. By contrast, the consummate office professional who always looked presentable, had a perfectly organized desk in a tidy office where he sat wearing a perfectly immaculate suit went home and did things to get messy. My father worked for State Farm insurance as a computer programmer for his entire career. For the longest time, there was one president of State Farm. During the day, he did typical office and business type of things. But on evenings and weekends, he got to give into his favorite hobby--fixing up old bulldozers! What a bizarre contrast. But what a great example of how home satisfaction is fulfilled by fundamentally different activities than work.
For myself, I deal with abstractions about Psychology and American History. At home I like to tinker with home-built battery boxes, dig in gardens and play with tractors.
Hobbies will never be dead. Hobbies help us be more than just a cog in a machine. Hobbies help us express our creativity and imagination. Hobbies give us mental breaks from the stresses of work and hobbies make our brains work in a way that gets them out of the ruts they typically get into while at work.
I know that while I love teaching, the last thing in the world I want to do at the end of the school day is to talk about school (unless it is a fun story!). I don't want to look at different lesson plans or look up lesson activities. I want to be done with that world and let my mind engage in another. Good. If my mind never left the classroom, I would hate what I do and I would never have the stories I have to make class fun.
Hobbies rule.
Eric