On the one door in my house that does have glass in it, I have a double cylinder lock. The key is kept near it, but not close enough to be grabbed should someone break the glass and reach in.

I don't have kids so I don't have to worry about them. Frankly, my escape plan in the event of a fire is a window. My one story house is not tall enough to break anything from jumping from a window.

But I do agree the best locks/doors will not stop a determined thief. At best you slow them down and make it too much of a pain in the butt to get into your house, so they move on to the next one.