I grew up in the 90s.
When we got to 2nd grade, we became eligible to take a road-sign test. (Left, right, stop). If you could demonstrate that you knew what that meant, and show them you owned a helmet, you could then ride your bicycle to and from school.
I was 7.
This was more than a decade after the term "stranger danger" had been seared into the American psyche.
I worry of the future.