Karen, I do understand this. Should we or shouldn't we? I don't think I'd ever go as far as microchipping, but I like the idea of having them dropped off at the driveway, if that is possible.
For myself, I chose homeschooling three years ago, for safety as well as academic reasons. And while some do not agree with this approach, it works for me, and my teenager is quite happy with this method.
But for those who cannot homeschool, all you can do is make the whole situation as safe as possible, but there is never going to be a failsafe method of child protection.
Teaching them to be constantly aware of their surroundings is a start, and of course, teaching them the 'tricks' molesters and kidnappers often use to lure them away from home or school is critical. But all these things must be done without turning the child into a fearful paranoid being. It isn't easy, but I know you will do everything that is humanly possible to protect your loved ones. Hugs, from another mom who cries for the lost souls.