So every other animal on earth falls into a rythmic cycle but we don't ? I mean you have free will of course. You can choose to make your lifestyle be waking up at 12am and falling asleep at 4am. That choice should be anyone's to take, just like smoking, drinking, and anything else. However, we should give out a default guideline of what an average day cycle is so people can cling on to that when they disregulate and things go south.

I will assert - the sun rises at 6-8am, and our society should align with that. It also sets at 5-8pm. We should also align with that. There will be outliers, and pleasing everyone is not an option. But we need to take in account the natural cycles of our environment. As that is the one thing we certainly cannot influence.