Yeah, this is all statistics. My wife forces me to lock all the windows every time we leave or go to sleep. Even though the window in my office would require a fucking ladder to crawl inside of the window from the outside.
I told her it's statistically more likely for somebody to pick up a rock from somebody's yard and come in through the front of the house, then it would be for somebody to come in with a ladder at the back to crawl into the 2nd floor window.
Doesn't matter, she still wants me to lock the windows.
Laziness. I open and close them often to put up a fan.