As I said earlier, yes. My characters eat, drink, sleep and bathe without mods forcing me to do so. It's called roleplaying.
I have two problems with most so-called "realism mods and hardcoe modes:
1. They generally only apply to the player. I don't want to be the only actor in the game laboring under these constraints.
2. I want to be rewarded for taking actions, not punished for not taking actions.
I agree. If there were a hardcoe mode I'd certainly try it since I'm a pretty heavy RP'er, but if it was penalty driven and those penalties only applyed to me then it's no different than how difficulty settings are now -- just applying modifier's that limit your character.
I like how they did sleep where you simply get a small reward for doing so. The problem with most food (a few of the stews being the exceptions) and all the drinks, however, is that their current benefits (and negatives with the drink) only apply to situations that a typical RP'er wouldn't use them in for immersion reasons. A small health or stamina restoration is only useful mid-battle**, and what RP'er could get their head around eating a venison chop while holding their shield up against a thug with a battle axe?
I'm not sure what rewards could be used for food/drink that would stay in the center between imbalance and pointless ... I'll have to think about that.
** If health/stamina didn't auto-regen so quickly, these small restorations might actually be useful.