Evaluation Bar in Live Games?

I'm curious, is there a reason as to why the evaluation bar is not shown in live games?
In my opinion, it can't be used for cheating as it doesn't tell you the best move, you still have to figure it out yourself. For some it could be distracting but I guess it could be added as an on/off feature that players can toggle based on their own preference. Maybe I'm wrong but it is a question that I've been asking myself for the past weeks.

An evaluation bar has the capability of unfairly aiding players. For example, if your opponent were to make a move, and the evaluation bar goes from equal all the way to completely favoring you or even as far as a checkmate, you then know to look for a tactic to win material or a checkmate that you might have not seen on your own. 

Isn't that rather a good thing? First of all if such change happens then it's the opponent's fault for allowing that to happen, and second of all it's more of a coaching thing to motivate the lower rated players and to teach them so they improve

Addressing both your points:

1. The thing is, that is one of the characteristics of a good chess player: the ability to find and take advantage of your opponent's mistake. By taking the need for that ability away, the skill required to play chess well is decreased.
2. An evaluation bar is a good tool to use when analyzing a game after it has finished, and many things can be learned from it, but a player's performance during a game with no outside assistance would be the most accurate measure of their true chess strength. 

evaluation bar for all it is best for both worlds but no cheating.

Evaluation provides too much information. While some players may not be able to find the best line, a large eval change will let players know there's a good variation. In some cases, it will give enough information to win the game.

Not trying to argue or anything but if the game indeed reaches a lost position we could say it's either player's job to make sure their position is stable

Actually, I think of it this way: if you play an in-person chess tournament (OTB) or even just play with friends in-person, there is no eval bar to help either of you. Online is the same chess game as with a physical board. If you can't do something ethically in-person, then you probably shouldn't have that option online.

Opening Stockfish means immediately seeing what the move is. Having just an eval bar by your side still has the challenge of you finding that winning tactic, and as we know Stockfish sometimes finds some absolutely insane strategies that involve multiple piece sacrifices which people wouldn't apply anyway. I can see all of your points though.

Yeah

The addition of an Evaluation bar to chess.com's gameplay would be a significant enhancement. Imagine this: even if you miss a blunder made by your opponent, the dramatic drop of the E bar would unmistakably signal their mistake. Moreover, this dynamic feature also functions as a reliable indicator of "Mx," signifying a checkmate in a certain moves.

Ni

You just posted exactly why that will never be an option.

Note that this is an old topic, resurrected by a spammer (probably a spambot) commenting "Yeah".

Yes, that was my goal.

I was actually thinking about this, so that's why I'm replying now.

Obviously it's cheating for regular chess, but I think it's a fun variant that chess.com (or another website) should consider adding to the variants section.

Note that it doesn't completely ruin the game since GMs still lose to engines with help from engines, it simply improves the quality of the game, by ensuring (or increasing the likelihood) that mistakes are punished.

For example, I play a lot of bullet and a lot of my games are blunderfests, including an eval bar would encourage more actual thinking and less playing blindly.

I'll chime in on this as well. I think it would be a cool option to turn on if both players agreed to it when starting the game. I could play my friends who are still in the process of learning and I think it could be a good educational way to play.

I think that the evaluation bar is clearly fair and adds a little fun to the beautiful game. Anyway, you would have to solely rely on your chess skills to get the best moves.

It is not fair at all!!!!!!! Imagine playing an in person game. You are about to make a move but then your arbiter said “Hey your opponent blundered a queen” You would NOT make the move and instead look for a way to take the queen.