Comment by m_mueller

As a Swiss with a small child, this is the main reason why I couldn't move to the US or UK. Your 70ies examples are still common enough in Switzerland. 6 year olds are sent to Kindergarden on their own (after a bit of training with their parents). Put the visibility triangle on and off you go. Parents are discouraged by the school authorities to bring by car. Today looking back at this I can see the value. Maybe it has to do with Switzerland being small enough for horrible child abduction stories to be very rare, and if they happen outside Switzerland we tend to think as something that happens to other people - as nationalistic as that sounds, but that's just how most people's minds work, for better or worse, in this instance probably for the better.