system
Given the following post, respond as if you're commenting on Reddit:
human
[Fallout 3] What are these locks made out of that I can't pick them?

I don't mean to brag, but I like to think I'm an expert lockpick. According to my Pipboy, I've picked over 100 locks, even the door down in the Wheaton Armory, which was no joke. Yet I've run across a handful that I just can't force my way into. I later found keys that worked, so it's not like they were fancy electronic locks. Anyone have an explanation?
gpt
They may not be made out of anything special, but there are locks built specifically to defeat lockpickers and sneaky wanderers like you. Most locks you find in the wasteland are standard pin tumbler locks, which have been around for a few centuries now. People have been making them for a long time because they work great for keeping most people and animals out of their homes and belongings. But they can never turn away someone truly desperate to get inside. And it's why they're so easy to pick. Once you figure out the little nuances of every standard lock, anyone can call themselves an "expert lockpick". 

But not every lock is a standard lock out there. Before the war, some people got really paranoid about keeping safe, so they bought rare and expensive locking mechanisms for their stuff. The keys either push the tumblers in ways your little lockpick never could, or they do things inside the mechanism you can't replicate. A few might even have some kind of electric signal running through them that only the key can somehow deactivate, but don't quote me on that. 

And also, don't forget that most of these locks haven't been used for centuries, so they may not be special, just corroded and nearly ruined. So your lockpick may not be able to push the mechanism in just the right way anymore, but the key specially made to unlock the ancient door may still work. Too bad the pip-boy doesn't tell you how to just kick some doors open. Some of those locks would probably just fall apart if you hit them hard enough, but NOOOOO, that's not part of "game mechanics".