@thomasfuchs@hachyderm.io @jesse@social.jelliefrontier.net VR glasses do get lighter and lighter.
Motion sickness could be avoided with simpler movements (like all those rythm games - almost nobody gets sick from Beat Saber) or 3rd party view (like Moss), but too many game developers (and quite a bit of the players) think VR games need to be 1st player to be "immersive".

But not seeing the rest of the surroundings, or just as a warped camera image, and having to wear something sure has its disadvantages, so I doubt it'll ever be mainstream as well.