This actually isn't that funny. Society is undergoing a dramatic shift in how people interact and with all of the electronic talking going on, no one seems to be talking about the changing ways in which people interact. I'm not saying the changes are good or bad - they have elements of both - but it is worth having conversations about the implications of the changes, and it doesn't seem to be happening.
It should be happening. It has political implications but even bigger social implications.
All that said, it is still kinda funny to see a sign like this.