This is really a monumental societal change.
3rd spaces are nearly completely destroyed, and online seems to be the main option for ppl now.
I can't remember the stats, but a significant amount of people never make it more than a few miles away from where they grew up. That would mean, especially in rural areas where a large geographic area is concentrated into a single school, you likely have been near or around your eventual partner, and if you're close in age you probably were aware of each other.