I am first and foremost a single player person, but I dabble. I think the competitive nature of online play really turns me off. I'm pretty good at certain games, but "pretty good" online="noob", so I just get slaughtered, and really don't have fun. Rocket League, FIFA18, and MK8D come to mind recently. Love those games, and absolutely love couch, split screen and co-op, but can't stand online. Its just not fun to lose, and I don't like the games enough to practice and become competitive.
Certain games, like Splatoon 2 for instance, which are predominantly online, and lack split screen play are complete no-go's for me. Had Splatoon 2 a split screen mode, it would have been a day one for me. but I don't know enough people with Switch's, or any consoles for that matter, to make it worthwhile. But if anyone can enjoy it with me on one console/television, then we have a deal.