Americans seem to have a very strange notion of what children can do at what ages. Kids at age 8 can reasonably go to and from school if it's close enough. This of course relies on living in a walkable area and I guess that's partially where the problem starts in the US. Parents got used to the idea that kids need to be transported by car or a specific, restricted-use school bus, leaving no freedom or agency for the children. Yes, growing up involves making mistakes, doing mischief, testing boundaries, learning what it is like to lie, feeling what a resulting bad conscience feels like, what a secret feels like etc. Yes, it may mean that the kid may skip a class or go somewhere they are not supposed to, but usually these aren't life shaking mistakes, unless there are deeper problems at home and with the parental environment.