I don't get you. Sometimes I see you post helpful, constructive responses, and then other times you are condescending as in this response.
Last time *I* checked, Bethesda didn't invent this game engine. It's used in a lot of different games. Therefore your pithy remark about this not being another game is invalid.
You know how "they have it," eh? Are you actually a dev in disguise? I have doubts, considering you seem to think that collision and game engines are designed specifically for each game, when in fact many games use similar (if not the same) engines/systems.
Behtesda has been working on this engine since Morrowind. They even said, they had to build many parts of it themselves. And since morrowind, the engine has only been used in 1 non-BethesdaGS game, Fallout New Vegas.
I know how they have it and I can prove it. Go in game, and open the consle, and type in TCL. That stands for Toggle Collision, meaning, your collision box is literally turned off. The EXACT same thing would happen if they did so for any NPC.
@Aerograt: Im not being snobby, I am simply telling it how it is. If this makes Skyrim inferior to other games, then thats what it does. Skyrim isn't perfect, nor has I ever claimed it to be so. Every game has its flaws.