I basically grew up in a machine shop, in a rural upstate New York state village, run by my grandfather and his two brothers. I started stopping off for caramels, Lifesavers and milkshakes, later on, I was running errands, then running machines, who knows if I had not gone to college for a career, I eventually dropped, I might be running a small rural machine shop.
Fast forward 45-50 years later, I spend about 45% of my time manufacturing parts for the company I work for, getting paid to work in my own shop is great. I do fabrication, welding, machining and electrical work, the rest of my time is involved in servicing, starting up and repairing, industrial boilers.
I can run a lathe, a milling machine, a surface grinder and other machine tools, but do not consider myself a machinist, no where near fast enough, I do it because I enjoy it. I find the field very interesting and there always seems something else to learn.
Growing up, I knew exactly one person with a lathe or milling machine and 2-3 people with a welder, again fast forward 50 years, about 75% of the people I deal with on a daily basis own mills, lathes and welders, plus the people I associate with on the web sites, own them. At times it makes you wonder if you associate with them because they own machine tools, or if its because people of similar interest seem to gather together. I know most of the local machine shop owners by sight and a vast majority of them, by name.
Is it a hobby for me or is it more, I'm not sure, I enjoy the time in the shop, whether its for work, a part for some of friends, who race, a neighbor's lawn mower repair or a machine upgrade or rebuild, I find it very satisfying.