Apparently I'm weird for shutting 1st floor windows at night because burglars don't like to enter through 1st floor windows?

[Northwinds]

I reminded OH to shut the bathroom window before bedtime, because it is a safety issue. He said, why? I said, because it's not safe to leave it open all night, it's not a small window, it'll be an easy entry point for burglars. He said I was weird to think this and that burglars do not particularly want to use a ladder to get into someone's house via an open window on the 1st floor. I was just so shocked that he can even think that! Please fellow mumsnetters, tell me I'm not being unreasonable to think this!

MN: Oh, no, I never open my front door. You don't know who might be there.

Also MN: Fiddledee, who would want to bother coming in my open windows at night or my never locked back door?

I answer my door pretty much always. I've had a neighbour tell me my car window was open, one checking I was ok (ambulance outside), one with spare cake yum, invite to a BBQ.. I was grateful my neighbour answered when I banged on his door hysterical as someone threw a firework in my house and I needed help