What if like 10% of people in Gotham has a “I know who Batman is but I will never tell a soul” moment.
Like a kid who Bruce saved while he was starting out was scared so he showed his face a bit more to calm them down.
Or that drunk guy in fear state who saw Bruce.
Or a lady who saw a Batman fight people and his mask got scraped up and she saw his face.
Or someone saw Batman lay flowers at the alley where the Waynes died and connected the dots.
They all know but they will deny it till kingdom come cause that’s how Gotham people are.
Like sure there are definitely some who have tried to tell other but there is quite a few who have just figured it out and decided that’s just not a thing they’re gonna talk about.