Not really though. When people are busy and attempting to go from A to B, they may want to eliminate variables to better focus on their friends or something else in the Waymo. This is similar to the experiment where an incredible musician played violin in the subway terminal and people 'ignored' him. It's all about intention, when people plan to talk to a stranger, they're geared for that, if they are on their way somewhere, it's not the time or place to stop and 'smell the roses' most of the time as they are in a rush, doesn't have much to do with how great the musician is in the subway. When people go to a concert, and if that's same musician in the subway, they'll most definitely enjoy it, because they're planning on enjoying music at that time.