So many areas in the US are much less walkable and bikeable than they used to be. I say that as someone who bicycle commuted for years. When I rode my bike to school as a kid I dealt with 25-35 mph traffic. The traffic was much lighter, the vehicles were much smaller, the drivers weren't perfect but they were way less distracted, and the shoulders were in better shape.

We can try to raise our kids with values that are consistent with the ones we grew up with. But trying to give them the same conditions because "it's what we did" doesn't always match up with reality.