That's what gets me about self-driving cars. The road is a very social space, and follows social rules. Pretty much all of the communication and norms happening on the road are social ones.

The thing that would convince me AGI is ready would be to play a convincing game of poker. Or join in on a conversation mid-way through, listen to it, and engage with it actively. Show that machines are able to pick up on social cues, understand them, and learn new ones. It's a high bar, yes, but it's in my opinion a prerequisite for a self-driving car that's able to share roadways with other cars, cyclists, and kids playing in the street.