Firstly I don't think we know enough about how many kids have been abused. It's obvious that we don't.
However, neither dd (11 and in year 7) or ds (5) will be ever walking to school. Nothing to do with stranger danger.
I live in a large village. Ds doesn't go to the village school, it's shit. We put dds primary down and got in. It's 3 Miles away. On the road to it, part of it doesn't have a foot path and goes between 2 farmers fields. No one walks on it. Adults or children.
Again dds school is 2 miles away down the same road. She also starts school at 8.10am. She won't be walking that road in the dark. There is a bus, but it gets to ours after the school. So she need to sit on it til it does almost the whole route again and takes 45 mins. because the bus only comes once and hour she would have to leave the house at 6.45am. To get to the bus stop.
Or I can drive her drop her off near by. Takes 15 minutes tops to get there and back.
Nothing to do with not giving her freedom etc.
Life is different now. People don't always go to schools that are round the corner. Our village doesn't even have a shop anymore. I leave dd in the house alone for short periods. She is sensible.
Life has changed. It's not all parents faults and tbh I get fed up of every change in society being because parents are shit.
Fwiw my dad was given loads of freedom growing up. Several of friends didn't manage to actually make it to adulthood. The good old days weren't perfect either.