WHY would you let all the 'weirdo's' out in society in this day & age, know your family make-up?
All a stalker would have to do if interested from info of your car 'stick figures', is follow you until you got home.
So now, 'he' knows the number of persons in your family, the gender of your kids, & how many you've got of each, that's downright creepy right there, what pets you have, maybe what sports in which you participate, & where you live.
Why not just put your phone number with the stick figures as well? Then the 'stage' is set, at a minimum for a 'home invasion'. At a maximum, for who knows what?
This is one of THE most ridiculous 'fads' I've ever seen. Just plain, straight out stupidity. All for the sake of 'big noting' yourself!
In today's society, nobody can be trusted, unfortunately.