In Germany a court just ruled that a three year old can go alone to the bath room and their parents don't have to check on them. The child set the bath room under water and someone wanted the parents to be liable.
Also some years ago, I saw a video from a school parking lot, where the hundreds of pupils where dropped off by their parents. So instead of building several schools close to the pupils, they build one big school, to which almost no pupil come alone.