Because what would be better depends on your position in the time zone and with where in the day one values daylight hours. There's a set of maps (e.g. [1]) that shows sunrise/sunset times by county and explains the variations quite nicely.
[1] https://conormclaughlin.net/2022/04/visualizing-the-impact-o...
> Over three months from December to March, public support dropped from 79% to 42%. Some schools moved their start times later.
Thus demonstrating clearly that adjusting everyone’s clocks is unnecessary?
Any method is superior to screwing up the clocks twice every year.
Objectively, more people are awake past 5pm than are awake before 7am.
But from where did the habits tied to the numbers come? Were they formed without reference to daylight?
Will most people always sleep before 7am and be awake after 5pm, no matter when there is daylight?
For this one at least absolutely yes because of work and after-school activities.