system
Given the following post, respond as if you're commenting on Reddit:
human
[Warhammer 40k] What is an average day like for a human citizen on: Chaos, Imperium and Tau controlled planets?
gpt
On an Imperial world, the fundamental truth is bureaucracy. Citizens work 16 hours a day, every day, for the sake of the Emperor. The most common group who don't spend day and night in the factories are gang scum, who function as much as a replacement for the woefully insufficient police as anything else. The monthly payment to the hab block is the foremost concern. Falling deeper in the hive is the daily fear.

On a Chaotic world, the fundamental truth is power. Citizens are often slaves, and if they are not they likely have slaves themselves. The most common group who don't spend life in bondage are cultists, the more successful of whom are the only demographic excepted from the normal struggles of power for the sake of their blessing by the Neverborn. There is no need for social control. Do as thou wilt. The satisfaction of one's lord, be that of flesh or of warp, is the foremost concern. Angering the powers that be is the daily fear.

On a Tau world, the fundamental truth is ideology. Human citizens vastly outnumber the Tau ruling class, and the Tau are not blind to the risk this presents. The methods of labor are as much for indoctrination into Tau concepts as they are for material purposes. Together they will gather, expressing their struggle towards the Greater Good, drones watching on. The most common group who don't accept their role as Gue'vesa are the Imperial underground. The Tau wish to win them over more than they wish to fight them, and so they are likely to have an unprecedented level of infiltration. Social control is provided by human auxiliaries under the command of Fire Caste. Growing in social rank is the foremost concern. Coming to be seen as an alien who has reached their limits in the Greater Good is the daily fear.