I feel so sorry for modern kids. When they are finally allowed out on their own they won't know their ar5e from their elbow. In my view the sort of "protection" spaced and others are talking about is in itself a form of child abuse.
The world is dangerous, the word is not fair, accidents happen, there are some lowlives, there are countless dangers, live with it. Yes there are some tragic occurences we all know about them but even with today's hysterical reporting they are no more common that in the past.
When I went to school my mum took me, once! first day, that was it. In fact in my day if your mum/dad took you to school you would have been laughing stock, I'd have died of embarassment.
My own son was taken to infant school but since then he makes his own way, walk bike whatever. He knows it's his job to get to school, end of.