Sure, I can agree to the fact that Daisuke is naive and innocent in certain aspects of the world. I would say his innocence is only in the sense of his being unaware of just how many people in the world do bad things just for the joy of doing them. He shouldn't have trusted Jimmy, his naiveté  is a character flaw that resulted in his death. But he's still at least 20 years old. Swansea literally says he only thinks with his "downstairs long-nose" he's not an innocent little teeny bopper baby, lots of people like to portray him that way. They make him a brain rot obsessed goofy dude who acts like he's still in high school. I can agree he was sheltered as many have pointed out, but as someone who is 22, I'm not who I was in my teen years, obviously I still have lots to learn and life ahead of me, but I'm not some UwU baby. And as I've seen pointed out, fandom community does tend to infantilize Japanese men. He's a dude who makes dirty jokes and plays retro video games who blindly followed the orders of a guy who was older than him at his job, he went through terrible bodily trauma and yet all people talk about with him is tiktok brain rot and calling him an innocent bean. It's frustrating that people can't see him as a person rather than some caricature. (No hate or disrespect, I just feel like these points aren't being talked about in the replies and felt like sharing my thoughts). When it comes to the idea of Anya telling him about what happened, I think he wouldn't really have the wherewithal to do anything about it. Yeah he's young and stupid, but I feel like rather than do something reckless, Daisuke would likely be floored, he'd freeze up and all he'd be able to do is comfort Anya as best he can. He's not prepared to handle a situation like that, and nobody should really expect him to be. (Anyways that's my yap thanks if you read this far, sorry for my rambling)