In Italy is now illegal to send your kids to school alone before they turn 14, it's now legally child abandonment. Even if the school is few hundreds meters from your house.
I went to school alone since my second day of elementary school, in Japan kids cross Tokyo streets at the same age.
I have given math lessons for two decades and during that timespan kids have changed a lot due to how much parents changed. It went quickly from "if he doesn't listen you slap him hard" to "how dares the teacher give him a bad grade".
I have brought that topic with some people my age on a programming board and all fellow devs surprisingly told me they agreed, that it is child abandonment and streets are dangerous.
I feel like such over protection makes for young adults that are absolutely unprepared for the harshness of real life.