Are there toddlers running around your house?
Now just grandkids but is was the same when mine we toddling. They are taught early on about touching one and they are never left alone to run the house.
With the exception of kids bedrooms/baths, there is one within 20 feet or so of where you stand/sit in any room.
Case and point the wife unit had two backwards cap wearing Obama sons come to the door yesterday while I was out trying to sell her magazines. After she told them no, they wanted to come in and get a drink, then the restroom. Very persistent. As she closed the door one of them tried to move toward the door only to be met by our Czech Shepard. They left and she called the sheriff. Had I been home it would have been an ambulance as I have one on my person 24/7. And we live in the country so to speak.