When people are home they have their own close friends and family that they need to balance time with. When they're out and about, unless they brought friends with them, the people around them are the only game in town. They can opt to go out and still be picky and/or stick to themselves, but it only impacts the fun/quality of their time if they choose to do that.
I have to believe that there are a LOT of people online here that will only engage (nevermind actually play) if all of the planets align perfectly, which means they are highly unlikely to ever engage. I can only speculate, but being online here must hold enough fantasy value for them that they still spend time online as if they were actually looking to do something. Perhaps they keep telling themselves "If only Jason Momoa and Natalie Portman wanted to play with us we'd....."
Of course all bets would be off if you could see they left a toilet seat up in the background of one of their pics ;-)