Some people are very lucky but that's no reason to sneer at those who want to keep their house secure. My back garden has 13 steps down to the back door so a burglar or unwanted intruder could force the door without being seen by neighbours or passers-by. Where I lived previously, I was...
This, and the ability to talk to a person, whilst we were on holiday in France, to ask what they wanted. It turned out the person concerned wanted next door and had got muddled with house numbers.