People going door to door uninvited should be required to get a licence and sercurity check if they are going door to door and required to show it on demand while engaged in the door to door work.
After all it is a perfect stranger for the most part who could be an imposter or maybe even a violent criminal or rapist. No one convicted of sexual molestation or violent crimes should be given a permit. An added benifit would be less people knocking on your door trying to sell you something be it a vaacum cleaner or armegeddon life insurance protection.
What is your opinon?