I totally agree Pippa. No, I'm not a parent, but I can't see how looking is a criminal activity, no matter in what way you look. At the end of the day it's not going to harm your kids to have anyone looking at them, for any reason, but like I've said if you're going to condemn people for looking alone you'll only encourage the thought that they "may as well be hung for a sheep as a lamb".
My dad was getting on in years when I was born, and when I was 8-10ish if he took me anywhere people always assumed something gross was going on, because he looked too old to be my dad. You could see the way they looked at him like he was doing something wrong. Exactly the same happened if my godfather took me anywhere, especially because I called him by his first name. I am only glad that neither of them were attacked because someone got the wrong end of the stick! Making assumptions about other people based on something you think you see or you think you know is always dangerous.