Let me ask if you have never made an error in judgment. Obviously, you have. We all have. We date people we really should not date, and we ignore the warnings of our friends and trusted family members in order to date those people. We even get married when we shouldn't. We take jobs we know are going to be bad news, and we quit jobs in the heat of the moment, only afterwards to realize what a stupid thing that is to do. We skip completing assignments or procrastinate about them, only to find ourselves in the worst sort of place when these things become due and we're pulled up on the carpet to answer for what a crappy job we've done.
Why do we act this way? We know it is not in our best interest. Yes, its true that we want sex, or we need the money, or that the game is on or the crew is going to the bar tonight and working on a task means missing all that. But we also know that we should listen to our friends. We know we should do our jobs. We know that without money, we're fucked. So why can't we simply have the wisdom to tell the difference between what is important, and what is REALLY important?
I don't pretend to answer that. I do want to point out, however, that we are NOT always aware of what is best for us, and we do NOT always do things in our own best interests. We are at the mercies of our hormones, our comprehension of how boring the responsible action will be, or what we perceive we might be missing by acting smartly. We are not perfect. We are human beings.
But if you want to get a real fight going at a D&D table, propose that a player can't do something because their wisdom says their character is not capable of thinking the way they themselves are.
Players - and power players especially - are used to treating D&D as a strategy game like chess. No one would ever suggest you couldn't move your king's pawn to king 4 because the king's pawn has a wisdom of 9 and isn't feeling up to that right now. You don't have to roll against intelligence to find out if the king's horse can jump a pawn and leap to king's bishop 3. These things are simply not part of the game. It is a strategy game, not a wishy-washy bunch of crap about 'feelings' or interpersonal limitations ... so let's not have any of that crap in D&D.
Arguably, it might have been a mistake to incorporate wisdom, intelligence, or even charisma into a game that was bound to be played almost universally by strategists. If I am going to give credit to Gygax for any given thing, it is going to be the genius of incorporating a limitation into the game that would well and truly fuck strategists FOR EVER. Not that the strategists pay any attention, of course. They simply ignore the stats (unless something strategic is derived from them), and players with a 10 wisdom character play precisely the way that players with an 18 wisdom character do. Want to argue with the king? No problem. Don't want to sleep with the girl? Of course you don't have to. Get up and fight although you only have one hit point and you can't win - don't think about it. OF COURSE your 8 wisdom character wouldn't refuse. This is a strategy game, after all.
Except that it isn't, obviously. But still after forty years the word has not come down. People have no trouble not being able to do something because they're not strong enough. The limitations of our bodies are not OUR limitations. Or so we fool ourselves into believing.
A player in my online campaign recently said, regarding failing a wisdom check, "I'm just not used to not having control of my character for non-magical reasons." But of course he is. We all are. We make rolls all the time to determine if we can do something, and when we can't, we're used to not having that control. We would have preferred the die went our way, but ... oh well.
The point here is that we're not used to not having control of our character's thought processes ... because this is pure anathema to our sensibilities. We can take failing at a task. It is murderously hard to take failing at a task because we're not smart enough.
That is why we associate so many of the things at the start of this post with shame and guilt, and things we'd rather never talk about again. Moreover, RPGs are a way of living a life without shame, or guilt. We kill without guilt. We steal without guilt. We conquer the world without guilt. We're unashamed, loud, self-important bastards, bellowing at the bartenders and barmaids of the world without worry or concern for anyone's feelings, in particular our own.
And who the hell wants any of that emotional baggage in a D&D game?
Well, frankly, I do. Because it's real. It's the substance and source of what makes us who we are. Even the difficult bits where we fail at what we wish we were able to do. Our failings are a thousand times more interesting than our successes, and they make our successes wonderful. I'm not going to sacrifice that whole potential aspect of the game, which is what makes this game better and more important than chess.
My players are not chesspieces. They're alive.