Imaculata
Hero
What I am disputing is that my house rule is significantly better than the codified RAW on character knowledge because, again, gating character knowledge behind specific "recollection" as an action is neither fun, nor realistic, nor fair.
I don't see how it is unfair. Any player can ask at any point "Do I know who this statue represents?". I can then either straight up tell them, or I might ask a check, if the knowledge is obscure. A player may also give a reason why he believes his character might already have this knowledge. This is where the players get to insert their own backstory into the game.
For example, a barbarian may ask "Have I heard of the person this statue portrays on one of my many travels?". Taking the barbarians travels into account, I may rule that he does have that knowledge, if it seems reasonable to me that he may have heard of the person. What I'm trying to get to is that as a DM I am not the one gatekeeping all knowledge. The players have some input regarding what their characters know.
But if the players ignore the statue, I don't really need to give them any information about it. I think this also sets up a good rule for how a DM should describe the environment: Don't waste too much time describing minor details, unless the players take an action to examine those details. This makes it easier for players to understand their surroundings, because you can keep the descriptions consise and to the point. But it also allows the flow of information to come directly from the actions of the players.
This is even more important if looking at the statue is dangerous for whatever reason. I don't presume the players automatically look at the statue. They first have to declare an action to look at it. (Though I often tend to ask for an extra confirmation if the player is about to attempt something really dangerous.)