You act like they're all active at once, idiot. There's only ever one Robin at any given time
No one can justify the existence of so many Robins
she was Robin enough for Joker
fangirls and fujos
For them all to have been the sidekicks of one guy for years each raises questions about his age.. among other questions..
It's actually easy for 3/5ths.
Dick was the first, an attempt to provide for another orphan what Bruce felt he didn't have the chance for.
Jason is Bruce weirdly coping.
Damian was out of Bruce's hands but remained placed in his hands so he doesn't turn into an al Ghul plant.
Steph barely counts.
Tim is the big issue, I like what was done with him but logically after Dick's falling out and Jason's death Batman should have seen no good end to the role and put an end to the Robins, maybe let Tim sit in the cave training until he's old enough to be his own man and being Bruce's Oracle, then it should have jumped to Damian being out of necessity since he'd be less likely to obediently wait in the manor.
Do Dick and Jason even have that great a relationship
How can you justify any less, when the next Robin’s character is always very influenced by their predecessor? (Not counting Stephanie, since she was never intended to permanently take on the role.) Tim is probably the most expendable, but even then you lose a lot of interesting traits of Damian’s if you take him out of the equation.