How does going to/from school work for children in Britain?

In the US, school generally school starts in the morning around the same time as or earlier than adult work time, so kids going to school are traveling at the same time as the work commute traffic.

The school day, though, is shorter than the work day so the kids come home while the adults are still at work, before the evening heavy traffic starts.

That introduces an asymmetry between the morning and evening work drives. The morning drive has a bunch of kids walking along the road. The evening drive does not.

This suggests that if you can only have one of those in daylight, it will probably be safer in the US to make that the morning one.

Permenant winter time means that school hours in Winter are entirely contained within sunlight hours. Permenant summer time means that kids are walking to school in the dark. I'd rather not have them hit by drivers also driving in the dark.