I remember many years ago, when my granddaughter and I were sitting in a train going into the city. I noticed a man sitting
opposite us about 3 seats away, giving my granddaughter a wink, I looked straight at her and she winked back at him, she was only 9 years old. I immediately said, "Don't ever do that again, you don't know him, he could be a creepy man". She couldn't
see the harm in it. Another time a man waved to her from his car and she waved back. It was a big worry as she is a very friendly girl. But now she is 30 years old and can see what I was talking about.