I find it difficult to include "hobby" as a reason to have a gun
My wife and I both enjoy shooting at a range and competing with each other as did my father and mother when I was growing up.
Whatever your feelings are fine for you but those feelings does not control others.
Considering that maintaining one's ability to hit a target, can be based on the perceived need to keep one's shooting ability up to snuff, in context of the hazard of living amongst humans, some good, some perhaps dangerous to one's home and hearth, then it might be conceivable to include changing the battery in one's smoke alarm every six months as a "hobby"? Fire too can be a hazard, one needs a defense against.
The used smoke alarm batteries can be put up on a mantle, as one's trophies for defeating the hazard of a home fire.
You sense my sarcasm, I would guess. Any hobby that requires me to pump more adrenaline into my bloodstream, is not a healthy, or perhaps, in my opinion, not a mentally healthy hobby. My opinion of course, based on the world I grew up in, which I believe is somewhat different from the world of fellow gun enthusiasts, I suspect in subtle, yet important ways. That's why I associate with only those folks that do not subscribe to gun ownership.
I see shooting a gun sort of like riding a bicycle; one never forgets how to do it. And, living in a world where continually practicing the art of deadly self-protection is just too depressing for me to subscribe to. I just can't see it as a worthwhile way to spend my time in this existence.
But, you obviously have to be you, in context of the world you live in.
P.S. Considering the Second Amendment was written to prevent a tyrannical government from taking over, then based on today's military technology, perhaps civilians should share the costs of part ownership in a tank, or airpower? Gun ranges can expand into military exercise ranges? Just my sarcasm again. Sorry.