I think it's a shame that basic RP habits aren't required to play this game. I remember way back, when I first played Dungeon Master, how your players *had* to eat and drink to survive...how your stamina would drain more quickly if you were carrying too much weight, (rather than the, "I can sprint for a minute or so carrying this much weight, but oops, add another half a kilogram and now I can only walk slowly", thing.
As such, I rarely RP in Skyrim. If I eat or drink it's just for the sake of it and it seems pointless. Plus I never sleep anymore...I just wait if I need to.
I agree with this as well.
The whole concept of eating, drinking and sleeping is from a logical point completely pointless. It's there as padding rather then to serve a purpose.
The way encumbrance is handled is also entirely illogical, but it has been so for ever within the TES series.
Considering how simple it would be to give it purpose and the fact that it HAS been done prior using the exact existing mechanics, it strikes me as nothing more then laziness on a developmental level.