Gaming

You could easily do it with a Switch controller shaped like a gun and nothing else. It's pretty accurate on its own right, just using motion sensors aka accelerometers. I'm not talking Kinect because that watches you. Completely different concept, though you can do it that way too. Cameras that can scan TVs a thousand times a second to look for moving images are a dime a dozen, not exactly expensive anymore. Maybe 10 years ago, but not today. It does all boil down to money though. Maybe they think those type of games aren't popular anymore, so not enough return on investment?

People don't want to buy a gun to play 1 game, and that seemed to happen often even back in the day with light guns.