My hobbies used to be making model kits and figures, riding motorcycles, flying, working as an extra on TV and movies, playing computer games and AH, photography, following motorsport, collecting something or other and one or two other activities. Now I wonder where I found the time. I used to be on the go seven days a week. Partly just lost interest and partly got married and had a child.
I still fly, but that's no longer a hobby. I still think I do some of the others but I'm only fooling myself.