I really don't see the point in not being able to harm kids. I mean, if anything, they're saying it's ok to kill people as long as you don't kill kids? Stupid idea. I wouldn't kill people simply because I can kill people in a game. (There's no law about killing kids in games, right?)
The argument most people have, is that it's immoral. And yet kids get crushed, poisoned, overheated, stabbed, and shot in shows like CSI, and nobody freaks out.
I couldn't deal with killing a kid in videogame so it doesn't matter to me either way, but I went to my mom to ask about what she thinks is immoral about the ability to kill children in a game, and she said: "It's the option to kill children that bugs me."
Parents like to have their kids feel safe. So, I guess that's the reason for the essential children.
Something that's greatly missing in the environment is Animals.
Now you may say "there where a lot of animals in Oblivion", no really those where "monsters", I use that word because the only purpose they had was either attack you on sight or BE killed by you.
But what about some smaller and "passive" animals, those that are just there to make the world seem less dead, eat plants or be hunted by others and only attack if really threatened. Those where simply missing.
There should be birds flying around, insects that aren't as big as dogs, and other animals that just don't attack or run away when they spot you, otherwise you really don't get a living environment.
They wouldn't be that resource intense, insects can simply be a sprite or even just particles, birds on a distance only need a VERY simple model, you could easily have thousands on screen without a problem.
Also they should have more behavior patterns, not just "attack player" or "run away from player" but also varying factors when to attack and when to run away and hunting and food gathering patterns so they hunt prey animals and eat food plants.
Also the wildlife needs to rotate more, you could always predict exactly where what animals spawned. And they really need more designs, at least different TEXTURES so not all look exactly the same. They could probably even have algorithms that can change some patterns and color shades randomly between spawned creatures of the same type so not one looks exactly like the other.
They did a pretty good job with NPC height/weight in Fallout 3. You'd get really short advlts, tall kids, and it wasn't race dependent. So maybe they'll transfer that over to animals.
Also, you could tell people apart VERY easily in that game. I mean, look at Moira Brown and then look at Jenny Stahl, same in-game race, same gender, but completely different. Their face wasn't so structurally defined in Fallout 3, so I think they've taken care of it for NPCs.
As for the creatures acting more realistic, I'd like to see that too. Like, if they had burrows or something they could spawn out of (and go back into) that'd be a lot better than actually seeing a deer materialize in the distance.
I would have liked to see little animals like mice, rabbits, snakes, birds, raccoons, cats, and they just weren't there as creatures.
There were a total of 13 kinds of creatures. 2 of them being kinds of wolves, and 2 of them being kinds of bears. So in reality it's 11.
Wolves, Boars, Mountain Lions, Deer, Dogs, Horses, Mudcrabs, Rats, Sheep, and Slaughterfish.
I did however, like Will-O-The-Wisps, Trolls, Ogres, and Goblins, because they felt like they fit.