And IMO this is perhaps the biggest reason VR is a niche product. I have had great fun with VR, but I've also had many days where it left me feeling awful. It is just not worth it IMO. At least a half dozen users I've had try it also left feeling nauseous. Kudos to those that don't experience any motion sickness, but this issue is a problematic limitation with VR tech. FWIW, I've never had any issues with seizures in games, or problems playing FPS games, etc. Don't get car sick, sea sick, etc. But VR definitely can be problematic for me. Until this "motion sickness" problem is resolved (if it even can be fixed), VR will remain a niche product. It's early days with VR so who knows what the future holds, but in its current form I cannot see it ever being mainstream. To be honest, I think AR is probably a more likely long-term winner in this arena, but we shall see.
I see some saying "you need to keep using it to get used to it", etc. Well, that's the problem. Not many people want to play games that make them feel awful for hours before they get enjoyment out of it. lol VR needs to get to the point where motion sickness is a rarity, not something you need to build up an immunity to. I'm keeping my VR gear because I still think it is worth it for the occasional experience....but as it stands now it will never be a primary way for me to play games.