If they already have one key to your house, know which house is yours, and don't care about your alarm nor camera, keys that open more than one door won't matter.
If someone really wants in they'll smash a window.
Well yeah. In my case they kicked in the rear door to the garage and then had all night to chip away and open the interior door.
But I'm not sure why they know where I live, nor how they know about my security system or cameras. I won't even address the idea of them not caring about all those measures and breaking in anyway...not sure what they think I have in my home.
My house only has one entrance
Does your one entrance only have one lock?
I recently bought a place and went through the same thought process. I went with one key for everything. Having a key or not, doesn’t stop thieves.
Since you are thinking about home security:
My cars all have built-in garage door openers that still work when the car is off. A dirtbag could shatter a window in the car and gain access to the garage and theoretically the house. For this reason, I don’t enable the built-in garage door openers. I use the remotes that come with the garage door.
In the same vein, if someone breaks into my car and steals the remote, they cannot find my home. There is nothing in the car to expose my home address. The address on the registration and insurance are to a PO Box.
All mail goes to the PO Box. All sensitive information is shredded before getting thrown away.
The ‘home’ setting in our navigation devices is set to an intersection a few blocks away.
Everyone tends to place their car keys down just inside the door of the house. This makes them easy to find. Ours are in our bedroom not only to make them harder to find, but I can also hit the panic button and set off the car alarms immediately should we suspect a dirtbag is nearby doing dirtbag things.
No cars with auto-open tech. I do have the remote in my truck right now while we're moving things into the house but I doubt it'll stay. Once we're settled in the motorcycles will be the only vehicles in the garage so if I even use a separate remote, it'll be on the bike itself or on the keys.
I've been thinking about a PO Box for that purpose, but I'm not sure I want the hassle of dealing with a trip to the Post Office every other day or so. The new place has a shared locking mailbox thing across the street so I'm not too concerned with random mail thefts.
I've long eschewed putting actual addresses in any GPS for reasons described above. I used to put the local police station's address in as my home. :laughing
I'm leaning towards a single key for every lock on the house.