For a counterexample, come visit Houten, NL (I live here and it's great) where you literally see kids around 10 years old biking independently, sometimes with a football (soccerball) or fishing rod in tow. And this is a pretty wealthy area by most standards.
We literally covered the world in asphalt ribbons of death and then we wonder why kids don't play outside.
What's crazy is how many kids are killed by drivers even _after_ kids stopped playing outside. It's like if the number of swimmers fell by 90% and drownings went _up_.
Here's a good livestream from my town - https://www.youtube.com/watch?v=ujXqogC2zk4 (I share the livestream because that makes it harder to say it's cherrypicked)
Or here's a more polished, edited video:
https://www.youtube.com/watch?v=r-TuGAHR78w
We literally covered the world in asphalt ribbons of death and then we wonder why kids don't play outside.
What's crazy is how many kids are killed by drivers even _after_ kids stopped playing outside. It's like if the number of swimmers fell by 90% and drownings went _up_.