Many people think Duke Thomas has almost zero interactions with the Batfam except Batman. And some think that Duke has the weakest relationship with the batfam. So, let me explain why they are wrong.
1. Dick Grayson literally mentored Duke Thomas. After rebirth, Dick always treated Duke as if Duke was his brother. Dick is the one who taught Duke what Robin meant.(Robin War, Batman rebirth)
2. Cassandra Cain and Duke Thomas are siblings that actually care for each other They help and assist each other consistently. The best friendship and sibling relationship in DC universe in my opinion.(Batman and the outsiders, detective comics)
3. Damian Wayne and Duke are close enough to watch a movie together. Duke once blamed Damian for not helping Bruce and Damian agreed. Which shows that Damian is very friendly to Duke.(Robin War, batman 33)
4. Jason also helped Duke’s training, and referenced Duke as one of his brothers. Duke consistantly made jokes about Jason dying, which shows that they are very close.(Role call, Red Hodd outlaw)
5. Duke assisted Helena Bertinelli’s work with Firevrand and Neon. It was clear that Huntress trusted Duke’s works.(Unexpected 4)
6. Bruce Wayne trained Duke for two years. Without Duke, Bruce would’ve never recovered his memories. And Bruce first met Duke in Zero year, which was way before he met any other batfam members. They’re basically father and son.(All star batman, Batman bloom etc)
7. Alfred Pennyworth was the one who decided to make Duke a robin. He gave Duke all the resources and helped him to become the hero of gotham. Even during the Cursed Wheel training, Alfred assisted Duke.(We are Robin, All star batman etc)
8. Tim Drake literally has a picture of Duke at his place.(Deathstroke 34)
9. When Jim Gordon was Batman, Duke was Robin of Gotham. When Orphan and mind controlled children attacked Gotham, him and Duke protected Gotham as Batman and Robin.(Batman and robin eternal)
10. When Batwoman was fighting against League of shadows, Duke assisted her with his research. He also assisted her battle against Monsters in gotham.(Detective comics, Night of the monster men)
Others: Duke mentioned about patrolling gotham with batgirl in Detective comics. When Batwing was captured by league of assassins, Duke told Batwoman that Luke Fox meant a lot to him, and he want to help in any way possible. Doctor Tompkins was thw one who helped Duke find a foster family, and help him to get through his problems.
I honestly don’t understand why people say Duke has almost no relationship with the batfam members. I think these stuff should be acknowledged more. Anyway, stan Duke Thomas.