I agree with most of this thread, but I do have to mention that those of us who have been molested often become over protective. I taught every little kid at our KH how to scream really loud. Parents didn't appreciate it, except for those who'd been molested too. This was before everyone talked about jw molestors, and just talked about family molestors. Also, and someone thought this was a bad idea, when my husband was out of town I often had kids stay over at our house, sometimes their mothers stayed too. The psychiatrist said I was getting a childhood I'd missed, and being protective , but I will never believe you can protect a child too much.
Never ever let your kids answer the door.
It is much too easy for a child abducter today. I remember out in service once a sister and I were on our "break" and there was this little girl who looked like she should be in school and she had her nightgown on and slippers. When the man left their table, the sister asked the little girl if she was ok, and could we help her. She said no her Dad was taking her to the doctor. We said if she needed to call someone that we'd help her do that. She said no. The Dad came back and we said hi. we talked a bit and figured it really was ok. Were we paranoid? If we hadn't talked to the child I would forever wonder if she was ok.
Malls frighten the beee-jesus out of me when it comes to kids (and this includes teens as well). Teens are so full of themselves (this is important for their development) that they don't suspect that they might be stalked. Make sure they know not to go anywhere in a Mall alone. Staying in pairs will often send predators in another direction.