I don't really think it's a matter of social acceptance. The VR gaming experience, at least at the start, will be much like playing a single player, first-person game on the TV, ignoring everyone/everything around you. People do that today, and in a social environment it's not cool (unless everyone in the room happens to be really into the game you're playing, etc), and it's not cool in VR either. But generally, I think most people are considerate and would not choose to become engrossed in a deep, single player experience on the TV while they have guests to entertain or whatever. VR would be no different to that.
By the same token, if you are not in that situation, and you're looking to enjoy a single player game without any distraction, many people today go and shut themselves in their bedroom to stare transfixed to their monitors/tvs. VR would work best here too.
The difference is, VR is more interesting to the mainstream. They will want to have a go. So in that sense it is more social for demonstration purposes. Beyond the demo/novelty stage, it's just as antisocial as playing games by yourself today on a screen.
A common argument is that people get to watch what's happening on a screen but not with VR - I'm sure they can have it output to the TV as well for everyone to see what you're experiencing. The Rift already does this, and that can be made more 'watchable' in the future (remove the split and distortion, etc).
Local multiplayer? That will come too - headsets will become cheap enough for a few people in the room to be wearing them.