What are other opportunities where people are semi-forced to interact (that don't normally interact with each other)? How do the other opportunities make the p

What are other opportunities where people are semi-forced to interact (that don't normally interact with each other)? How do the other opportunities make the profiler no longer profiling when the situation is out of a store? I am not saying profiling people in stores is the only chance, as the profiling is already a base assumption. I'm saying the automation is taking away more semi-forced interaction point. My premise is that it's bad, as people can only really understand each other when they interact. And most people don't actively interact. The supermarket/shopping place is one place that generally is forced interaction.