I don't have a problem with preparations. I was disputing that the lack of a firearm was not the problem. The poster was contending that the door itself was the problem. And, since the home was rented, there probably was not much choice about the door. There was choice about having a gun.
The poster blaming the door solely means he is a proponent of the mindset of cowering behind fortifications rather than favoring reasonable physical security with awareness and security tools.
I'm sad to see this commentary by the usually logical and sane Eye95.
First, we're talking about a 17 yo female not a grown person advocating cowering behind doors.
Second, once the BG is inside the house, is having a firearm on premises a 100% solution. I don't think so. You must put a tiny slug in the right place at the right time in a highly chaotic situation. It's best to employ a simple door handle jam to prevent anyone from easily coming in and gaining TIME. Then, with the time gain, the persons inside can employ cover and concealment and bring any lethal force to bear with some ability to prepare.
Why the OP needs to drag this into a shooting gallery solution using a 17 yo female as the operator escapes me. What's more psychically harmful, giving a 17 yo a firearm (perhaps without training) and say 'shoot any SB that tries to come in the house', or giving her a firearm AND a door handle jam bar and saying put this bar up when I leave. Call 911 if anyone tries to force their way in.
Evidently there wasn't even time to call 911, the 17 yo was not given a phone on 911 speed dial, and not given a method to delay entry. These are the two fail points.
All the OP has is disparaging commentary 'since you're a wussy, your idea is wrong'. Yeah, sure, whatever.