[More like he's already decided it's exactly what he's doing.]
He's older, but he's still my little bro, you know? I want to make sure he's good.
[He doesn't know how to feel about two of his older brothers being his little brothers here, or Damian being that much older. And Damian has always outclassed Duke in most things, but he's still Duke's little brother. It means something to him.
no subject
[More like he's already decided it's exactly what he's doing.]
He's older, but he's still my little bro, you know? I want to make sure he's good.
[He doesn't know how to feel about two of his older brothers being his little brothers here, or Damian being that much older. And Damian has always outclassed Duke in most things, but he's still Duke's little brother. It means something to him.
Maybe Dick and Cass are rubbing off on him...]