I wonder how much are cars contributing to the current fertility crash. The multi-ton metal projectiles that clog the streets and we call cars make the urban landscape hostile to children. They can't be raised "free-range", demanding constant micromanagement from parents indoors.
There's a major intersection about a mile from where I live, which unfortunately is next to public schools/local library/etc. The other day I was in my car waiting for the light when I saw a young girl on a scooter push into the crosswalk. She had the right of way, but I inwardly cringed and hovered my hand over my horn button, just anticipating that a vehicle was going to turn without seeing her. Fortunately she made it through OK.
My daughter has her learning permit and it is rather nerve racking. It's by far the most dangerous thing most people do in life. It's like carrying around a loaded gun all while interacting with thousands of other people with loaded guns.