It’s not always so simple. If the kid knows not to run into the street, then why can’t they play outside? My siblings play outside the whole day with our neighbors, and no parent watching outside and we live on a busy street. The oldest kids are normally 9. My mother lets my 4 year old sister play outside and I don’t think anyone would say that my mother doesn’t watch her children.
If they know not to do something irresponsible, then why not?