A good roommate situation can be fine, but a bad one can be terrible. We've got to have other options.

Current internet connection tools encourage you to stay on your screen. You could easily design a system that nudges folks to actually get together in real time. Let's say you've been chatting via messenger for 10 minutes. Then you get a popup that says, "{name} is actually only x blocks away -- why don't you continue this over coffee?"

Meanwhile, a real-time idea could be apartments or houses with shared common areas. I miss the common rooms of college where you just happen to run into people. We could do that again as adults without the 9-act dramatic operas that happen when you share too much living space with folks. There's such thing as a happy medium.