There's usually a thread every week or two about this.
It's been pointed out that if you want to, for realism purposes, sleep, eat, drink, etc., there;s nothing stopping you from doing this in the game.
Just do it the same way you do in the real world, i.e., none of us need a "hardcoe" switch to be flipped before we eat, sleep, drink in real life so, why should we need it in a game?
That being said, I don't have any issue with this being an option so long as doing this doesn't reduce resources that would otherwise be available to put something in the game that most people want and doesn't create any bugs that we all have to live with.