Talonflight, I 100% agree with you, and have thought the same thing since my first run through Dawnguard. It seems that Skyrim was designed with adventure foremost in mind, whereas character development is more of a jrpg thing. But it would be pretty cool if we could get both. Modders try to fulfill that hunger with followers built from scratch, but they have overlooked one thing that makes Lydia special, and that's her attachment to the events that unfold in the story. She has a tangible place in this world. She served the Jarl of Whiterun, but the Jarl has appointed her to the player. On the flipside, a follower built from scratch will always be someone who the player must seek out and recruit, but they will never truly engage in the story. They will only be an observer. A commentator. An extra sword. Surely the creative freedom that comes with a completely original follower is difficult to resist, but I have a hunch that getting inside Lydia's brain would astound the masses.