I think that it's worth mentioning that in order to make the game more fun and challenging, you have to change the scale of which things are done. For example, it's unlikely that you would play a character for a period at once where you would need to eat 3 separate meals.

I also believe things will change as more features are implemented fully like Stoves, Cooking and Animals etc. This could also be linked to the current stamina of players, being able to sprint for kilometers isn't exactly realistic but seems like it is there to make the game more fun in it's current state (Without vehicles)