I certainly don't feel like this knife stuff is work yet, but mainly because I don't have other people asking me to do it for them lol
Other creative hobbies have been woodworking/turning, leatherworking, digital artwork / photography / photo editing...but it doesn't take much for me to switch from hobby to work brain.
With the wood stuff, for example, I've spent many many hours making things as gifts, and enjoyed every bit of it.
But the minute i go out and buy a bunch of wood and turning project kits, with no one in particular in mind to make them for, it immediately feels like a chore and i haven't made a single one of them...even though most of the projects are super quick and easy, and would be great practice.
I get your points, and I don't disagree with anything in particular...I'm just weird about this stuff. Most times I'd rather make something and give it away to someone I know than turn around and profit off it from a stranger.
Hell, the one time i did try selling something to a casual friend, i ended up telling him to give the money to a fundraiser he was helping with instead lol
For whatever reason it just didn't seem as appealing once he was ready to hand over the cash.
It was a turned acrylic shaving brush and, cheesy as this sounds, seeing how excited and impressed he was with it was satisfying enough