> Like walking to school in the dark is worse than walking home from school in the dark?
There is no place in California where the amount of daylight is so short that kids would walk home in the dark as long as school starts around 8-9, regardless of whether they use PST or PDT during the winter.
The choices are, if school start times stay so that they are before parent work start times, between walking both to and from school in the light, and walking to school in the dark and from school in the light.
If it were a choice between walking to school in the dark or walking home from school in the dark, walking to school in the dark would be worse, because the school day is shorter than the adult work day. The kids going to school overlap with the morning commute traffic. The kids coming home beat the evening commute traffice.