My children go to a school that is on the same street as our house. They leave through the front door, cross over the road and then walk up the road for around 3-4 minutes and they’re at the school gates.
Because the school is so close, I can watch them walk the entire way from my bedroom window. Both of my children are extremely sensible, not just in my opinion but their teachers and their friend’s parents are always singing their praises.
They have only walked to school alone 2x and I take them through the same safety briefing in the morning - stay out the road, stay together, look where you’re going, look left and right before crossing etc. Also before letting them walk to school alone (which they have been begging to do btw) we started with saying bye to them at the gate instead of walking them to class, progressing to only walking to the top of the road with them, then half way up the road with them until I was confident in their ability to stay safe.
My children are 7 (almost 8) & 6 years old.