Depends what you are selling and to whom. Meanwhile, India wanted to get a lot of people online and this appears to suit their needs.

This has nothing to do with income.

The problem here is that India alone would be consuming 20% of the IPv4 address space.

I'm confused. What's your point?

Obviously economies that rely largely on second hand technology are going to have old technology. Much of Africa is in this bucket. But looking past the extremes, India is at nearly 80% right alongside Germany. They fall in very different average income brackets. So the correlation isn't tight.

I can't see any value in pointing out vague correlation between income and proliferation of a new technology. It's the most obvious of observations.

very transparent.

what has _that_ got to do with ipv6 adoption/usage ?

afaics, it probably has more to do with large indian-isp’s f.e. jio adopting ipv6.