Well done Michelle! Yes being honest and having a real conversation with your children about this is a must. And I agree with @healingherb, martial arts skills can come in handy when it is needed.
I tell my daughter all the time, if someone is trying to grab you, scream like bloody murder and yell fire as loud as you can, then start kicking, punching, poking eyes out whatever it takes. I watch her like a hawk as well.
Thanks Tom! I felt this information needed to be shared, and yes I totally agree about martial arts skills for self defence.
Great you're having these conversations with your daughter so she is aware of what to do. Yes I watched mine like a hawk too, except when with family . . . whole different pandora's box.