@johnjohnston @canion Wow; that’s a huge change in four generations.

I think some of the comments on that post are right; it’s more than just the “safety” concern that have caused this, but also the overall changes in our society/families/lives and our geography (more cars, more bigger roads—and no sidewalks/crosswalks, more fragmented subdivisions, and no access to forests and parks, at least in the US), all compounding the effects of each other.