I started walking to school alone once I started 1st grade (at around age 7) and did it for about 5 years until my parents moved our family to a place outside of town where it was impractical to do so. I just checked Google Maps to be sure and it is about a 1.2Km / 0.75 miles, so a short walk for either an adult or a 7-year old.

A few months ago I had a heated argument with my father, stepmother and wife because I (half-joking/serious) told my almost 8-year daugher that next year we will start practicing her going to school by herself. You would not believe the stink all of them raised telling me I was irresponsible, yadda, yadda, what about child molesters/ kidnappers, yadda, yadda, too many cars and the usual non-sense you usually hear about this.

Again I went and checked on Google Maps just to be precise and the walk between our house and my daughters school is... 500 meters / 0.31 miles.

In a single generation we went from "your starting school for the first time? time to fend for yourself, you will do fine" to "you are a snowflake that needs to be protected at all times and must not be allowed to alone in any circunstances".

PS: To give more context, I don't live in the US but in a small EU country with a low crime rate, on a town that indeed is busy but very safe.