I have a sad little story re this. There is a bench on the seafront about 50 metres from where my grandfather used to live. He could just about walk that far and used to sit on it admiring the view and chatting to passers by. One day a little boy came along who was running ahead of his mother and started a conversation with him. The mother came rushing up and shouted furiously at my grandfather. What did she think an old man like him was going to do, especially when she was only a few yards behind the child? My grandfather was devastated, never went to the bench again and in fact died a couple of months later. I'm convinced the incident was a contributory factor.