I sadly have to say I think that the shielding of children from view from possible predators is a good idea rather than a negative. It in no way reflects a bad community, and shows the schools have the childrens safety at heart.
I went to a school many years ago that was free to walk in and out of, and views through the fences were possible. However child abduction and sexual abuse of children seemed far less common as it is today.

Conversation in the streets and on the station platforms, helping one another, and looking out for your neighbours are the starts of a good enviroment. Consideration for others in your actions is another thing that lacks in todays society.