One thing I've been pretty shocked by is how people are taking it. In India, the ATMs don't work, people are losing their jobs, but it's just a topic of discussion. You can think it's a good or bad idea, all opinions are tolerated.
Compare to the insanity currently happening in the US - riots and political violence spreading, dissidents afraid to speak [1], virtually everyone is angry. It's quite a contrast to see up close. (I flew to India shortly after demonetization, and came back to the US a day ago.)
[1] Just after the election my social calendar was full. All the secret Trump supporters were desperate to talk to someone and I was the only person they felt safe speaking to.