system
A chat on subreddit /r/PoliticalCompassMemes
human
I think it's to do with the fact that most people who are lactose intolerant don't care. This would only intensify in countries with more worries than the first world, i'd imagine.
gpt
I lived jn a rather well off part of Asia for 6 months, and people drank plenty of milk, with no stomach issues.

It's weird that 9/10 of them would have troubles according to the map.

I even asked them about it, and they told me barely anyone had issues with milk, and those who did just drank soy milk.

Edit: of course this could be selection bias. Maybe I stayed in an area where all the lactose tolerant people lived.

However, I traveled around, and it was the same everywhere