Another DCXDp/DPXDC thought:
Danny is related to Bernard. Not any of the bats, Bernard. He is the younger cousin of Bernard who is living with Tim on a house boat. Of course Bernard wants to take his cousin in after the death of his family when someone puts together how creepy af his godfather is.
And now Tim is dealing with having a stepson around. Like he never expected this but he's not going to break up with Bernard of turn the kid away! Bernard and him sat down to talk about it, Bernard wasn't trying to spring it on him or anything. But like: oh god I'm a stepdad (sorta).
Everyone makes fun of Bruce for being a grandad though.
Ut when Danny shows up he instantly clocks Tim as something a bit shady, and then learns of his secret identity.
I want to say that the ultimate enemy did happen but Sam and Tucker got saved. And Danny did defeat Dan. So Danny knows he can take Tim.
But he's terrified of like having Tim figure him out. Because while there's no GIW (they tried, one call to the JL got them handled. JL stayed out of Amity on word of Phantom it wasn't safe for them) what if Tim figures out that he could be evil? It's scary! Danny has retired more or less now that he's in Gotham. The ghosts he fought found out he was moving and went: no fun then, and just haven't come through unless they're BIG deals like Vortex. Danny can zip over to deal with that easy.
Danny just wants to mourn and be a civilian. What if Tim doesn’t let him?