Shotguns are excellent home defense weapons, and honestly are a bunch of fun to shoot. I have a clay pigeon thrower at my mom’s farm (where I keep my shotgun) and it’s a blast.
You can get addicted to literally anything, but that has more to do with your personality than the vice. I knew a guy who was addicted to advil. Didn’t have chronic pain or anything, but couldn’t stop taking it.
It’s not a gaming addition that’s the problem, it’s that many of these games basically follow the same playbook that casinos do. They’re gambling disguised as a video game.